ИНДУКЦИОННАЯ СИСТЕМА ЭЛЕКТРОПИТАНИЯ

Изобретение относится к устройствам индуктивной передачи энергии. Технический результат - обеспечение передачи энергии на больших площадях. Заявлено устройствоподачи электропитания для обеспечения подачи электрической мощности к устройству приема мощности, причем устройство подачи электропитания содержит две пластины, две структуры электродов, выполненные с возможностью связи с источником питания переменного тока и по меньшей мере одним передатчиком мощности. Каждая структура электродов прикрепляется к одной из упомянутых двух пластин. Передатчик мощности располагается между этими двумя пластинами и содержит электропроводящую катушку и по меньшей мере два электрических контакта, связанных с электропроводящей катушкой. Пластины и передатчик мощности располагаются так, что передатчик мощности может двигаться в направлении, параллельном поверхностям пластин, с электрическими контактами, находящимися в контакте с соответствующими двумя структурами электродов для получения мощности от источника ...

БЕСКОНТАКТНОЕ ЗАРЯДНОЕ УСТРОЙСТВО

Изобретение относится к бесконтактному зарядному устройству. Бесконтактное зарядное устройство содержит устройство приема мощности, содержащее катушку; аккумулятор; модуль определения состояния заряда аккумулятора; модуль задания допустимого диапазона для процесса заряда; модуль управления зарядом для управления мощностью процесса заряда для аккумулятора и дисплей для отображения допустимого диапазона для процесса заряда. Модуль задания допустимого диапазона для процесса заряда задает допустимый диапазон для процесса заряда шире по мере того, как состояние заряда выше. Повышается удобство пользования. 5 з.п. ф-лы, 19 ил.

СХЕМА ДЛЯ ИНДУКТИВНОЙ ПЕРЕДАЧИ ПИТАНИЯ

Изобретение относится к электротехнике, в частности, к индуктивным системам передачи питания. Технический результат - упрощение схемы при обеспечении эффективного управления. Схема, используемая в первичном модуле индуктивной системы передачи питания, для генерирования электромагнитного поля для передачи питания с помощью беспроводных технологий электромагнитной индукцией одному или более вторичным модулям системы, причем вторичный модуль или каждый вторичный модуль, находится отдельно от первичного модуля, схема, включает: множество управляемых элементов, каждый элемент, включает первичную обмотку или индуктор - холостую обмотку, не участвующую в генерировании электромагнитного поля; средства управления, функционирующие для предоставления обоим или, по меньшей мере, двум из указанных элементов, управляющего сигнала, чтобы управляемые элементы, которые имеют указанную первичную обмотку, генерировали указанное электромагнитное поле; и средства контроля, функционирующие в зависимости от сигнала ...

СИСТЕМА ОБЕСПЕЧЕНИЯ ЭЛЕКТРОЭНЕРГИЕЙ, ТРАНСПОРТНОЕ СРЕДСТВО И СПОСОБ ЭКСПЛУТАЦИИ ТРАНСПОРТНОГО СРЕДСТВА

... 1. Система обеспечения электроэнергией, прежде всего тяговая система транспортного средства, причем система (1) обеспечения электроэнергией содержит инвертер (3), электродвигатель (4), приемное устройство (5), адаптированное для приема переменного электромагнитного поля и выработки переменного электрического тока посредством электромагнитной индукции, и систему (8) пассивных электрических цепей, адаптированную для соединения инвертера (3), электродвигателя (4) и приемного устройства (5), причем система (8) пассивных электрических цепей содержит первую передающую цепь для передачи электрической энергии между приемным устройством (3) и электродвигателем (4), вторую передающую цепь для передачи электрической энергии между приемным устройством (5) и инвертером (3) и третью передающую цепь для передачи электрической энергии между инвертером (3) и электродвигателем (4),отличающаяся тем, чтосистема (8) пассивных электрических цепей выполнена так, что при заданной частоте зарядки импеданс, обеспечиваемый ...

БЛОК ПЛИТЫ ДОРОЖНОГО ПОКРЫТИЯ И СПОСОБ ИЗГОТОВЛЕНИЯ ПЛИТЫ ДОРОЖНОГО ПОКРЫТИЯ

... 1. Блок (1) плиты дорожного покрытия для дороги для транспортных средств, движущихся или стоящих на поверхности дороги, прежде всего для дорожных автомобилей, причемблок (1) плиты дорожного покрытия, по меньшей мере, частично состоит из материала (3) дорожного покрытия,блок (1) плиты дорожного покрытия содержит несущий кабель элемент (20, 30), выполненный для размещения и/или удерживания нескольких участков линий одной или нескольких электрических линий (2, 2а, 2b, 2с),электрическая линия или линии (2, 2а, 2b, 2с) простирается(-ются) вдоль и/или под поверхностью блока (1) плиты дорожного покрытия,причем несущий кабель элемент (20, 30) внедрен в материал (3) дорожного покрытия блока (1) плиты дорожного покрытия,несущий кабель элемент (20, 30) расположен в блоке (1) плиты дорожного покрытия так, что несущий кабель элемент (20, 30) окружен материалом (3) дорожного покрытия,отличающийся тем, чтоблок (1) плиты дорожного покрытия содержит один или несколько армирующих элементов, причем армирующий ...

АВТОМОБИЛЬ

Изобретение относится к бесконтактной зарядке транспортных средств. Автомобиль содержит панель пола, образующую нижнюю поверхность автомобиля; аккумулятор, расположенный на нижней поверхности панели пола, и устройство получения энергии, расположенное под панелью пола. Устройство получения энергии сконфигурировано для бесконтактного приема электрической энергии от внешнего устройства передачи энергии. Устройство приема энергии имеет нижнюю поверхность, расположенную ниже нижней поверхности аккумулятора. Повышается механическая защита аккумулятора. 5 з.п. ф-лы, 26 ил.

ИНДУКТИВНАЯ ПЕРЕДАЧА ПИТАНИЯ

... 1. Способ обнаружения для использования в модуле первичной обмотки индуктивной системы передачи питания, причем модуль первичной обмотки может функционировать для передачи питания беспроводным образом, посредством электромагнитной индукции, по меньшей мере, одному модулю вторичной обмотки системы, расположенной вблизи модуля первичной обмотки и/или внешнему объекту, расположенному в упомянутой близости, предусматривающий: ! управление модулем первичной обмотки так, чтобы в управляемом состоянии величина электрического сигнала управления, предоставленного одной или более первичной обмотке модуля первичных обмоток, изменилась от первого значения до второго значения; ! оценку эффекта такого управления на электрической характеристике модуля первичных обмоток; и ! обнаружение в зависимости от оцененного эффекта присутствия упомянутого модуля вторичных обмоток и/или внешнего объекта расположенных в близости к упомянутому модулю первичной обмотки. ! 2. Способ обнаружения по п.1, в котором электрическая ...

ТРАНСПОРТНОЕ СРЕДСТВО, ЭЛЕКТРИЧЕСКОЕ УСТРОЙСТВО И СИСТЕМА ПРИЕМА/ПЕРЕДАЧИ МОЩНОСТИ

... 1. Транспортное средство, содержащее:устройство (110) приема мощности, которое принимает мощность для эксплуатации транспортного средства (100) бесконтактным образом с использованием резонанса электромагнитного поля; иустройство (184) передачи мощности, которое передает мощность, подаваемую на электрическое устройство внутри транспортного средства, бесконтактным образом с использованием резонанса электромагнитного поля,при этом, частота электромагнитного поля, используемая устройством приема мощности для приема мощности, установлена отличной от частоты электромагнитного поля, используемой устройством передачи мощности для передачи мощности.2. Транспортное средство по п. 1, в котором частота электромагнитного поля, используемая устройством приема мощности для приема мощности, и частота электромагнитного поля, используемая устройством передачи мощности для передачи мощности, установлены так, что частота электромагнитного поля, используемая устройством приема мощности для приема мощности, ...

Induktives Ladegerät mit einem festmontierten Kern

LEISTUNGSKOPPELUNG

Vorrichtung zur induktiven Übertragung elektrischer Energie

Vorrichtung zur induktiven Übertragung elektrischer Energie von einer stationären Einheit mit mindestens einer Primärinduktivität (2) zu einem benachbart zu dieser stehenden Fahrzeug (1) mit mindestens einer Sekundärinduktivität (4), dadurch gekennzeichnet, dass die stationäre Einheit oder das Fahrzeug (1) eine Einrichtung zur Detektion des Vorhandenseins eines Gegenstandes (11) innerhalb eines vorbestimmten Raumes, der zumindest den während der Energieübertragung zwischen der Primärinduktivität (2) und der Sekundärinduktivität (4) liegenden Raum (10) umfasst, aufweist.

PARAMETERSCHÄTZUNG FÜR EIN DRAHTLOSES LEISTUNGSÜBERTRAGUNGSSYSTEM

Ein Fahrzeug ist mit einer Spule und einem Sensor versehen. Die Spule ist dazu ausgelegt, Leistung drahtlos in einphasiger Form von einer externen Spule zu empfangen. Der Sensor ist dazu ausgelegt, eine Eigenschaft der Leistung zu messen. Das Fahrzeug ist ferner mit einer Steuerung versehen, die dazu programmiert ist, einen Parameter zu schätzen, der die Spulenausrichtung unter Verwendung einer dreiphasigen Darstellung der Leistung auf Grundlage der Eigenschaft anzeigt, und die über die Spule empfangene Leistung auf Grundlage des Parameters einzustellen.

LLC-Resonanzumrichter

Ein LLC-Resonanzumrichter (100), in dem ein Kondensator (Cr), eine Induktivität (Lr) und eine Starkstromleitung (Anschlussleitung 160) zwischen dem Kondensator (Cr) und der Induktivität (Lr) eine Reihenresonanzeinheit bilden, ist durch ein Kunstharz (200) kunstharzverkapselt. Weil die Reihenresonanzeinheit, die ein Hochspannungsteil ist, als Ganzes kunstharzverkapselt ist, ist es möglich, einen Isolationsabstand sogar im Falle höherer Spannungen und Frequenzen zu verkürzen und eine Erhöhung der Größe zu verhindern.

Schubfeld für einen Vorderwagen einer Fahrzeugkarosserie eines Fahrzeugs und Fahrzeug

Es wird ein Schubfeld (1) für einen Vorderwagen einer Fahrzeugkarosserie eines Fahrzeugs vorgeschlagen, wobei das aus Metall bestehende Schubfeld (1) einen Aufnahmebereich (2) mit Befestigungsmitteln zur mechanischen Befestigung einer Sekundärspule (21) eines induktiven Energieübertragungssystems (20) zur Ladung eines elektrischen Energiespeichers des Fahrzeugs aufweist.

Energieversorgungeinrichtung mit induktiv gekoppelter zusätzlicher Energiespeichereinheit zum Versorgen eines elektrischen Antriebs eines Kraftwagens

Die Erfindung betrifft eine Energieversorgungeinrichtung (1) zum Versorgen eines elektrischen Antriebs (4) eines Kraftwagens (2) mit elektrischer Energie, mit einem an dem Kraftwagen (2) montierbaren, ersten elektrischen Energiespeicher (10), mit einer Energiespeichereinheit (12), die einen zweiten elektrischen Energiespeicher (13) umfasst und zum Laden des ersten elektrischen Energiespeichers (10) ausgebildet ist, und mit einer Kopplungsvorrichtung (20) zum Koppeln der Energiespeichereinheit (12) mit dem ersten elektrischen Energiespeicher (10). Um die Reichweite des Kraftwagens (2) bedarfsgerecht zu erhöhen, ist erfindungsgemäß vorgesehen, dass die Kopplungsvorrichtung (20) einen Wechselrichter (21), einen Gleichrichter (22) sowie eine Spulenanordnung (23) zum kontaktlosen Koppeln der Energiespeichereinheit (12) durch Induktion umfasst.

Vorrichtung für ein Kraftfahrzeug zum galvanisch entkoppelten Übertragen einer elektrischen Spannung

Die Erfindung betrifft eine Vorrichtung (10) für ein Kraftfahrzeug zum galvanisch entkoppelten Übertragen einer elektrischen Spannung zwischen einem Hochvoltkreis (12) und einem Niedervoltkreis (14) mit einem galvanisch getrennten Gleichspannungswandler (16) mit einer Primärseite (24) und einer Sekundärseite (26) und einem galvanisch gekoppelten Gleichspannungswandler (32) mit einem Eingang und einem Ausgang, wobei die Sekundärseite (26) des galvanisch getrennten Gleichspannungswandlers (16) mit dem Eingang des galvanisch gekoppelten Gleichspannungswandlers (32) elektrisch verbunden ist und die Primärseite (24) des galvanisch getrennten Gleichspannungswandlers (16) mit dem Hochvoltkreis (12) elektrisch verbindbar ist und der Ausgang des galvanisch gekoppelten Gleichspannungswandlers (32) mit dem Niedervoltkreis (14) verbindbar ist, und wobei der galvanisch getrennte Gleichspannungswandler (16) eine von dem Hochvoltkreis (12) bereitgestellte Hochvoltgleichspannung (UH) in eine erste Gleichspannung ...

Matrixförmig verlegte Leitungen zur Bildung einer oder mehrerer primärseitiger Spulen eines induktiven Energieübertragungssystems

Die Erfindung betrifft eine primärseitige Vorrichtung für ein Energieübertragungssystem zur berührungslosen Übertragung elektrischer Energie auf mindestens ein stehendes oder fahrendes Fahrzeug (F), wobei an dem Fahrzeug (F) mindestens ein Sekundärelement (2) angeordnet ist, welches induktiv mittels mindestens einer Spule (S) mit der primärseitigen Vorrichtung koppelbar ist, wobei die mindestens eine Spule (S) der primärseitigen Vorrichtung (1) mit mindestens einer Energiequelle (U), insbesondere in Form eines Inverters (4), verbunden oder verbindbar ist, wobei auf einer begrenzten Fläche (FL) in X-Richtung mehrere parallel nebeneinander und zueinander beabstandete geradlinige Leitungen (Lx) und in Y-Richtung mehrere parallel nebeneinander und zueinander beabstandete geradlinige Leitungen (Ly) angeordnet sind, die zwischen sich viereckige Bereiche (B, BB, B', BB'') begrenzen, und in den den einen Bereich (B, BB, BB', BB'') begrenzenden und jeweils parallel zueinander angeordneten Leitungen ...

Arrangement on which vehicle is moved, has primary conductor systems attached to each track section, and inputs attached to each conductor system for supplying current to conductor systems depending on requirement

The arrangement has a track with a set of sections, and primary conductor systems attached to each of the track sections. A vehicle (5) is movable along the track and inductively supplied with current from the conductor systems. Inputs (1-3) are attached to each of the conductor systems for supplying the current to the conductor systems depending on the requirement. The inputs and/or the vehicles are connected with a controller (4) for data exchange, and a leaky wave conductor is provided along the track. An antenna of the vehicle is movable along the leaky wave conductor. An independent claim is also included for a method for operating an arrangement on that a vehicle is moved.

Power transfer unit of a system for inductive power transfer, a method of manufacturing a power transfer unit and of operating a power transfer unit

Power transfer unit of a system for inductive power transfer, a method of manufacturing a power transfer unit and of operating a power transfer unit

An inductive power transfer unit comprises a winding structure 1and at least one flux guiding means 3 comprising at least one low reluctance or high permeability section, such as sections 3a,3b, and at least one high reluctance or low permeability section, such as air gap 6. The flux guiding means 3 may be a flux guiding layer comprising one or more ferrite bars or plates 4. The at least one high reluctance section may be provided by a gap between two low reluctance sections or at least partially by a smaller cross sectional area of at least one flux guiding means. The flux guiding means is larger than a length and width of the winding structure and is located below the winding structure when forming the primary winding structure for charging an electric vehicle. The unit may further comprise at least one flux control means comprising a flux winding structure (8) wound around a central section of the flux guiding means.

Electric power supply system, vehicle and method of operating a vehicle

Resonance type noncontact charging device

Resonance type noncontact charging device.

ARRANGEMENT FOR THE SUPPLY OF A CONSUMER WITH ELECTRICITY

System and method for wireless charging of a mobile robot in an hazarduous area

The invention relates to a system for wirelessly charging an electrically chargeable device, in particular a mobile inspection robot, in a potentially explosive environment. The invention also relates to a charging station for use in such a system according to the invention. The invention further relates to an electrically chargeable device, in particular an inspection robot, for use in such a system according to the invention. In addition, the invention relates to a method for wirelessly charging an electrically chargeable device, in particular a mobile inspection robot, by using such a system according to the invention.

Non-contact power reception device

NON-CONTACT POWER RECEPTION DEVICE 5 A non-contact power reception device that receives electric power from a power transmission device, the non-contact power reception device comprising a secondary side coil (22) configured to receive electric power from a power transmission device through a magnetic field, a charger (24) configured to receive the electric power received at the secondary side coil 1o (22), and a control unit (26) configured to stop the charger (24) after the power transmission device is stopped when charging is to be stopped. 6341296_1 ...

Battery chargers

ON-BOARD BIDIRECTIONAL AC FAST CHARGER FOR ELECTRIC VEHICLES

An electric vehicle fast charger and methods thereof are described, adapted for re-use of magnetic components of an electric vehicle having traction converters when the electric vehicle is stationary and connected to a power grid. A switching stage provided by one or more sets of switches is controlled complementarily with the switches of the traction converters to (i) provide inversion of a grid voltage and (ii) shape current of the grid current between the electric vehicle and the power grid to track a waveshape of the grid voltage. A single switching stage and a dual switching stage circuit are contemplated, along with switch controller circuits, and instruction sets for switch control. Variants provide for energy transfer to accommodate for energy imbalances between storage devices.

SYSTEMS, METHODS, AND APPARATUS FOR INTEGRATED TUNING CAPACITORS IN CHARGING COIL STRUCTURE

Systems, methods, and apparatus are disclosed for power transfer including a plurality of coil structures located over a ferrite element, the plurality of coil structures configured to generate a high flux region and a low flux region, the low flux region being located between the plurality of coil structures, and a tuning capacitance located directly over the ferrite element in the low flux region.

SYSTEMS, METHODS, AND APPARATUS FOR PARTIAL ELECTRONICS INTEGRATION IN VEHICLE PADS FOR WIRELESS POWER TRANSFER APPLICATIONS

Systems, methods, and apparatus for partial electronics integration in vehicle pads for wireless power transfer applications are provided. In one aspect, an apparatus for wirelessly receiving charging power is provided. The apparatus comprises a first enclosure including at least a receive coupler configured to generate an alternating current under the influence of an alternating magnetic field in a first enclosure. The first enclosure further includes a rectifier circuit configured to modify the alternating current to produce a direct current for output from the first enclosure to a controller circuit in a disparately located second enclosure. The apparatus further comprises at least one direct current inductor configured to receive the direct current from the rectifier circuit. In some implementations, the apparatus further comprises the controller circuit in the second enclosure. The controller circuit is configured to selectively provide the direct current to a battery.

CIRCUIT ARRANGEMENT FOR PROVIDING A DC VOLTAGE IN A VEHICLE AND METHOD OF OPERATING A CIRCUIT ARRANGEMENT

The invention relates to a circuit arrangement for providing a DC voltage in a vehicle and a method for operating the circuit arrangement, wherein the circuit arrangement comprises at least one secondary-sided inductance (2) of a vehicle-sided pick-up portion for receiving a magnetic field and for producing an electric output voltage, at least one rectifier (3) for rectifying the output voltage of the at least one inductance (2), and at least one source element and/or drain element, wherein the rectifier (3) and the source element are connected such that an output voltage of the circuit arrangement is a sum of an output voltage (U1) of the rectifier (3) and an output voltage of the source element and/or the rectifier (3) and the drain element are connected such that an output voltage of the circuit arrangement is a difference between an output voltage (U1) of the rectifier (3) and an input voltage of the drain element. Furthermore, the invention relates to a vehicle.

CONTACTLESS CHARGING METHOD FOR DYNAMIC, AND CORRESPONDING SYSTEM

L'invention concerne un procédé transfert de puissance destiné à la charge sans contact d'une batterie électrique d'un véhicule automobile électrique ou hybride en mouvement, une puissance électrique étant transférée par induction entre une bobine primaire émettrice disposée dans un tronçon de route, et une bobine secondaire (BS) réceptrice embarquée sur ledit véhicule et connectée à ladite batterie, ladite bobine primaire appartenant à un réseau de bobines primaires (BP) successives disposées régulièrement dans un tronçon de route, comportant des étapes de transfert de puissance: - entre ladite bobine primaire et le véhicule - entre la bobine primaire suivante et le véhicule caractérisé en ce que ledit procédé comporte en outre une étape de mise en court-circuit de la bobine primaire suivante avant la transition du transfert de puissance entre la bobine primaire et la bobine primaire suivante.

CONTACTLESS ELECTRICITY SUPPLY SYSTEM

dispositivo de carregamento sem contato do tipo de ressonância

A SAFETY SYSTEM, A METHOD OF OPERATING A SAFETY SYSTEM AND A METHOD OF BUILDING A SAFETY SYSTEM

CONTACTLESS ELECTRICITY SUPPLY SYSTEM

VEHICLE, ELECTRIC DEVICE, AND POWER TRANSMISSION/RECEPTION SYSTEM

Systems, methods, and apparatus related to mutual detection and identification of electric vehicle and charging station

Systems, methods, and apparatus are disclosed for communicating with a charging system comprising a plurality of charging stations configured to charge an electric vehicle. At least one first signal is transmitted to the charging system via a first communication link while the electric vehicle is a first distance from at least one charging station of the plurality of charging stations. The at least one first signal is indicative of a vehicle identifier of the electric vehicle. At least one second signal is received from the at least one charging station of the plurality of charging stations via a second communication link while the electric vehicle is a second distance from the at least one charging station, the second distance less than the first distance. The at least one second signal is indicative of a charging station identifier of the at least one charging station.

Non-contact power supply system

A non-contact power supply system supplies electricity in a non-contact manner between a power transmission coil of a power supply device 1 and a power reception coil of a vehicle. The vehicle 2 has a wireless communication unit that transmits to the power supply device a startup signal that starts up the power supply device. The power supply device has a reception unit that receives the startup signal. A controller controls the power supply device based on the startup signal. The communication unit transmits a first startup signal when the vehicle is traveling, and transmits a second startup signal when the vehicle is stopped. The controller controls the electricity supply device according to a first control flow when the first startup signal has been received, and controls the power supply device according to a second control flow when the second startup signal has been received.

Multi-dimensional inductive charger and applications thereof

A system and method for providing a multi-dimensional inductive charger. In accordance with an embodiment, the system comprises a base unit having one or more transmitter coils; and one or more components including a ferromagnetic, ferrite, or other magnetic material or layer, that modify the magnitude and/or phase of an electromagnetic field in one or multiple dimensions. When a mobile device, such as a phone, computing device, camera, kitchen appliance, automobile, or other electrical or electronic device having one or more receiver coils or receivers associated therewith, is placed in proximity to the base unit, the transmitter coil is used to inductively generate a current in the receiver coil or receiver associated with the mobile device, to charge or power the mobile device. In accordance with various embodiments, the base unit is provided within an automobile, for use in charging or powering one or more mobile devices within the automobile.

Systems, methods, and apparatus for living object protection in wireless power transfer applications

Systems, methods, and apparatus for living object protection in wireless power transfer applications are provided. In one aspect, an apparatus for detecting objects in a detection area of a wireless power transfer system is provided. The apparatus comprises a plurality of radar transceivers. The apparatus comprises at least one processor configured to receive radar data from the plurality of radar transceivers, detect an object in the detection area based on the received radar data, and adjust the detection area. The apparatus is configured to adjust the detection area based on at least one of a type of chargeable vehicle present, an amount of power being wirelessly transferred by the wireless power transfer system, an alignment of a vehicle with the wireless power transfer system, or a speed of the object approaching the detection area.

WIRELESS POWER TRANSMISSION APPARATUS FOR MOBILE DEVICE

A wireless charging apparatus includes a charging unit configured to transmit power wirelessly to a mobile device, and a power supply unit configured to supply power to the charging unit. The wireless charging apparatus further includes a connecting unit configured to connect the charging unit to the power supply unit such that a position and an angle of the charging unit are adjustable.

SELECTIVE COMMUNICATION BASED ON DISTANCE FROM A PLURALITY OF ELECTRIC VEHICLE WIRELESS CHARGING STATIONS IN A FACILITY

Systems, methods, and apparatus are disclosed for charging a vehicle in a wireless power transfer system. In one aspect, a method of charging a vehicle is provided, including determining distances between the vehicle and each of a plurality of charging stations. The method further includes selectively communicating, based on the distances, with a first charging station of the plurality of charging stations.

INDUCTIVE CHARGING SYSTEM FOR ELECTRIC VEHICLE

A charging system for an electric vehicle that assists in aligning a primary charging coil and a secondary coil. The system may include a wheel chock that raises the primary coil into alignment with the secondary coil when a tire enters the wheel chock. The system may include a primary that is recessed below the surface supporting the vehicle and is protected by a cover. The secondary coil may be protected and supported by a skid plate mounted to the vehicle. The system may include a charging circuit that is controlled by signals transmitted by a garage door opener transmitter or a garage door opener. The system may include sensors that detect the presence of an animal or object in the space between the primary coil and the secondary coil.

REINFORCED BASE PAD COVER

Techniques for improving the structural integrity of wireless power base and vehicle pads are provided. An example of a wireless electric vehicle pad with a foreign object detection system according to the disclosure includes a reinforced base pad cover including an interior side with a plurality of columns, and a foreign object detection loop array comprising a plurality of loop centers, the foreign object detection loop array being disposed on the interior side of the reinforced base pad cover such that each of the plurality of loop centers is disposed around a corresponding column in the plurality of columns.

Non-contact power-supply device with voltage vector target control

A non-contact power supply device includes: a power transmission coil that generates a magnetic flux by an alternating current; a power transmission circuit that supplies the alternating current to the power transmission coil; a power transmission side control circuit that controls the power transmission circuit; a power receiving coil that generates an alternating current by interlinking the magnetic flux generated in the power transmission coil; and a power receiving circuit that converts the alternating current supplied from the power receiving coil into a direct current, and supplies the direct current to the power supply target. The power transmission side control circuit obtains a voltage vector target value based on a relationship between a voltage vector and a current vector, and controls the power transmission circuit to set the voltage vector of the alternating current output from the power transmission circuit to be the voltage vector target value.

POWER RECEIVING DEVICE

A power receiving device receives power from a power transmitting device including a primary coil in a contactless manner and supplies power to a power storage device. The power receiving device includes a secondary coil that receives AC power of a predetermined frequency from the primary coil, a capacitor that is connected to the secondary coil and constitutes a resonant circuit together with the secondary coil, a rectifier circuit that rectifies output power from the resonant circuit, a power conditioning circuit that is provided between the power storage device and the rectifier circuit and includes a switch, and a control device that controls the switch by a predetermined driving frequency. The driving frequency is a frequency obtained by dividing the predetermined frequency of the AC power by a natural number equal to or greater than 2.

DEVICE FOR INDUCTIVELY CHARGING AN ELECTRICAL STORAGE UNIT

The invention relates to a device (1) for inductively charging an electrical storage unit, in particular of a motor vehicle, comprising a stationary primary coil (2) and a secondary coil that is or can be associated with the motor vehicle, wherein at least one resonance capacitor (7) is associated with the primary coil (2) and the secondary coil, respectively. According to the invention, at least one of the resonance capacitors (7) is designed to at least substantially surround the coil (2) in question or to at least substantially be surrounded by the coil (2) in question.

CAPACITIVE WIRELESS POWER TRANSFER CIRCUIT AND RELATED TECHNIQUES

Capacitive wireless power transfer systems are provided. In one embodiment, for example, the system comprises two pair of coupled conducting plates; a first matching network coupled to the first pair of conducting plates; and a second matching network coupled to the second pair of conducting plates. At least one of the first and second matching networks comprises an inductor having inductance value selected based on at least one parasitic capacitance value of the capacitive wireless power transfer system. In another embodiment, a method of designing a capacitive wireless power transfer system is provided comprising determining a parasitic capacitance value of a capacitive wireless power transfer system and determining an inductance value of an inductor of at least one of the first and second matching network having a value selected based on at least one parasitic capacitance value of the capacitive wireless power transfer system.

Receive End and Transmit End of Wireless Charging System, and Wireless Charging System

A receive end and a transmit end of a wireless charging system, and the wireless charging system, where the receive end includes a receive coil, a rectifier, and a receive end controller, where the receive coil receives an alternating magnetic field and outputs an alternating current, the rectifier is configured to rectify the alternating current from the receive coil into a direct current, the receive end controller is configured to adjust, based on a target impedance sent by a transmit end controller, a reflection impedance reflected from the receive end to a transmit end such that an inverter of the transmit end implements a zero voltage switching (ZVS), and a bridge arm voltage is a voltage between two bridge arm midpoints of a full bridge rectifier or a voltage between a single bridge arm midpoint of a half bridge rectifier and ground.

CONTROL DEVICE, NON-CONTACT POWER SUPPLY DIAGNOSTIC PROGRAM, AND NON-CONTACT POWER SUPPLY SYSTEM

A control device includes a processor configured to determine whether a non-contact power supply device is normal based on an induction current that passes through a power receiving coil of a non-contact power receiving device due to power supply via a power supply coil of the non-contact power supply device. 1. A control device comprising a processor configured to determine whether a non-contact power supply device is normal based on an induction current that passes through a power receiving coil of a non-contact power receiving device due to power supply via a power supply coil of the non-contact power supply device.2. The control device according to claim 1 , wherein:when the induction current is larger than a first threshold value, the processor determines that the non-contact power supply device is normal; andwhen the induction current is equal to or less than the first threshold value, the processor determines that the non-contact power supply device is failed.3. The control device according to claim 1 , wherein:when the induction current is larger than a first threshold value, the processor determines that the non-contact power supply device is normal; andwhen the induction current is equal to or less than the first threshold value and there is no foreign matter between the power supply coil and the power receiving coil, the processor determines that the non-contact power supply device is failed.4. The control device according to claim 3 , wherein:when the induction current is equal to or less than the first threshold value and equal to or less than a second threshold value that is smaller than the first threshold value, the processor determines that there is a foreign matter between the power supply coil and the power receiving coil; andwhen the induction current is equal to or less than the first threshold value and larger than the second threshold value, the processor determines that there is no foreign matter between the power supply coil and the power ...

Charger for Power Storage Device

A charger includes a power regulator that regulates power supplied from a power supply and outputs the power to a power storage device, a current detector that detects a battery current supplied to the power storage device, a voltage detector that detects a battery voltage, a controller that performs feedback control over the power regulator based on the battery current and the battery voltage, a feedback signal generator that generates, based on the battery current and the battery voltage, a power feedback signal usable for constant current control and constant voltage control, and a feedback calculator that generates, based on a difference between a command value and the power feedback signal, a control signal to control the power regulator.

БЛОК ПЛИТЫ ДОРОЖНОГО ПОКРЫТИЯ И СПОСОБ ИЗГОТОВЛЕНИЯ ПЛИТЫ ДОРОЖНОГО ПОКРЫТИЯ

Группа изобретений относится к дорожному покрытию, обеспечивающему электроснабжение транспортных средств. Блок (1) плиты дорожного покрытия частично состоит из материала (3) дорожного покрытия. Блок (1) содержит несущий кабель элемент (20, 30), выполненный для размещения и/или удерживания нескольких участков линий одной или нескольких электрических линий (2, 2а, 2b, 2с). Электрические линии (2, 2а, 2b, 2с) простираются вдоль и/или под поверхностью блока (1). Несущий кабель элемент (20, 30) внедрен в материал (3) блока (1) плиты дорожного покрытия. Несущий кабель элемент (20, 30) расположен в блоке (1) так, что несущий кабель элемент (20, 30) окружен материалом (3) дорожного покрытия. Блок (1) содержит неметаллические армирующие элементы. Изобретения также включают в себя способ изготовления блока (1) плиты дорожного покрытия, дорогу для транспортных средств, содержащую несколько блоков (1), и способ строительства дороги для транспортных средств. Технический результат изобретений заключается ...

ТРАНСПОРТНОЕ СРЕДСТВО С ЭЛЕКТРОПРИВОДОМ И УСТРОЙСТВО ПОДАЧИ ЭНЕРГИИ ДЛЯ ТРАНСПОРТНОГО СРЕДСТВА

Изобретение относится к транспортному средству с электроприводом и устройству подачи энергии для транспортного средства. Транспортное средство содержит вторичную работающую на собственной резонансной частоте катушку, вторичную катушку, выпрямитель и устройство накопления энергии. Вторичная работающая на собственной резонансной частоте катушка сконфигурирована для магнитной связи с первичной работающей на собственной резонансной частоте катушкой устройства подачи энергии. Вторичная катушка сконфигурирована для получения электрической энергии от вторичной работающей на собственной резонансной частоте катушки посредством электромагнитной индукции. Устройство подачи энергии по первому варианту содержит формирователь высокочастотной энергии, первичную катушку для получения высокочастотной энергии от формирователя высокочастотной энергии, первичную работающую на собственной резонансной частоте катушку, устройство связи, устройство управления. Устройство связи сконфигурировано для приема значения ...

МОНТАЖНАЯ КОНСТРУКЦИЯ ТРАНСПОРТНОГО СРЕДСТВА ДЛЯ УСТРОЙСТВА БЕСКОНТАКТНОГО ПРИЕМА МОЩНОСТИ

Изобретение относится к электрическим тяговым системам транспортных средств. Монтажная конструкция транспортного средства для устройства бесконтактного приема мощности, в которой устройство бесконтактного приема мощности включает в себя катушку для приема мощности и установлено в нижнем фрагменте кузова транспортного средства. При этом катушка для приема мощности является круглой катушкой, имеющей полый фрагмент, сформированный в центральном фрагменте катушки для приема мощности в радиальном направлении. Катушка для приема мощности, резонансный конденсатор и магнитный элемент размещены в блоке катушки для приема мощности, формирующем устройство бесконтактного приема мощности. Блок катушки для приема мощности присоединен к конструктивному элементу, служащему в качестве элемента рамы кузова транспортного средства. При этом соответствующая полому фрагменту область, которая является фрагментом блока катушки для приема мощности, соответствующим полому фрагменту катушки для приема мощности, находится ...

УСТРОЙСВО ПОМОЩИ ПРИ ПАРКОВКЕ И СПОСОБ ПОМОЩИ ПРИ ПАРКОВКЕ

Изобретение относится к устройству помощи при парковке и к способу помощи при парковке. Устройство помощи при парковке используется в беспроводной системе подачи электрической мощности, которая выполняет беспроводную подачу электрической мощности между передающей электрическую мощность катушкой на стороне земли и принимающей электрическую мощность катушкой на стороне транспортного средства. Устройство содержит три и более катушки и блок обнаружения несовмещения. Катушки выровнены в одном направлении в виде сверху транспортного средства и выполнены с возможностью обнаруживать магнитный поток в вертикальном направлении транспортного средства, который формируется передающей электрическую мощность катушкой. Блок обнаружения несовмещения выполнен с возможностью обнаруживать несовмещение между передающей электрическую мощность катушкой и принимающей электрическую мощность катушкой в одном направлении на основе уменьшения в магнитном потоке в вертикальном направлении транспортного средства, которое ...

СИСТЕМА БЕСКОНТАКТНОЙ ПОДАЧИ ЭЛЕКТРИЧЕСКОЙ ЭНЕРГИИ

Использование: в области электротехники. Технический результат – обеспечение передачи информации между стороной передачи электрической энергии и приемной стороной без необходимости использования отдельной катушки связи. Система содержит: катушку передачи электрической энергии; средство преобразования, которое преобразует электрическую энергию подачи на стороне передачи электрической энергии и выводит электрическую энергию в катушку передачи электрической энергии; контроллер на стороне передачи электрической энергии, который управляет средством преобразования; катушку приема электрической энергии, которая принимает электрическую энергию из катушки передачи электрической энергии бесконтактным способом посредством по меньшей мере магнитной связи и которая подает электрическую энергию в нагрузку, электрически подключенную к катушке приема электрической энергии; средство сглаживания, которое сглаживает электрическую энергию, принимаемую посредством катушки приема электрической энергии; датчик ...

УСТРОЙСТВО ПОДАЧИ ЭЛЕКТРИЧЕСКОЙ МОЩНОСТИ И СПОСОБ ПОДАЧИ ЭЛЕКТРИЧЕСКОЙ МОЩНОСТИ

... 1. Устройство подачи электрической мощности, которое выполняет подачу электрической мощности к транспортному средству извне, причем устройство подачи электрической мощности содержит:секцию источника электрической мощности для выполнения подачи электрической мощности к транспортному средству; иустройство управления, которое выполняет управление секцией источника электрической мощности, при этом устройство управления получает информацию об эффективности получения электрической мощности транспортного средства как объекта для подачи электрической мощности и определяет диапазон эффективности получения электрической мощности и оплату, которая соответствует полученной информации, из множества диапазонов эффективности получения электрической мощности и множества оплат, которые установлены согласно множеству диапазонов эффективности получения электрической мощности.2. Устройство подачи электрической мощности по п. 1, дополнительно содержащее секцию передачи электрической мощности для получения электрической ...

ИНДУКТИРУЮЩИЙ ПРОВОД ДЛЯ БЕСКОНТАКТНОЙ ПЕРЕДАЧИ ЭНЕРГИИ, А ТАКЖЕ ЕГО ПРИМЕНЕНИЕ ДЛЯ ТРАНСПОРТНЫХ СРЕДСТВ

... 1. Индуктирующий провод (1), служащий для бесконтактной передачи электрической энергии, по меньшей мере от одного первого устройства по меньшей мере к одному второму устройству, причем этот индуктирующий провод (1) включает в себя несколько отдельных проводов (7), каждый из которых частично или полностью охвачен электрическим изолятором, и которые расположены в продольном направлении (6), отличающийся тем, что по меньшей мере в одной первой периодически повторяющейся области (11) в продольном направлении (6) отдельных проводов (7) по меньшей мере один отдельный провод (7) разделен по меньшей мере на две пространственно отделенные друг от друга части (8).2. Индуктирующий провод (1) по п.1, отличающийся тем, что указанные, по меньшей мере две части (8) этого по меньшей мере одного отдельного провода (7) соответственно механически соединены друг с другом посредством электрически не проводящего изоляторного мостика (9).3. Индуктирующий провод (1) по п.1 или 2, отличающийся тем, что несколько ...

Energieübertragungsanordnung

Die Erfindung betrifft eine Energieübertragungsanordnung (10) mit einer elektromagnetischen Wandlereinheit (12), die eingangsseitig mit einer Wechselspannungsquelle (14) koppelbar ist, einer ersten Gleichspannungsschaltung (36), die eingangsseitig mit der elektromagnetischen Wandlereinheit (12) gekoppelt ist und ausgangsseitig mit einer ersten elektrischen Gleichspannungssenke (16) koppelbar ist, und die dazu ausgebildet ist, ausgangsseitig eine erste Gleichspannung bereitzustellen, und einer zweiten Gleichspannungsschaltung (40), die eingangsseitig mit der elektromagnetischen Wandlereinheit (12) gekoppelt ist und die ausgangsseitig mit einer zweiten elektrischen Gleichspannungssenke (18) koppelbar ist und die dazu ausgebildet ist, ausgangsseitig eine zweite Gleichspannung bereitzustellen, wobei eine der Gleichspannungsschaltungen (36, 40) zum Einstellen ihrer ausgangsseitigen Gleichspannung einen Gleichspannungswandler (50) aufweist.

Verfahren zur Regelung der zwischen Resonatoren eines Systems zur kontaktlosen Energieübertragung übertragenen Energie, sowie Resonatoranordnung

Induktive Ladung von Fahrzeugen mit sekundärseitiger Spannungsmessung und Rückwirkung der Sekundärseite auf die Primärseite

Fahrzeugpositionierung für induktive Energieübertragung

Verfahren zum Annähern eines Fahrzeugs (6) an eine fahrzeugexterne Primärladeeinheit (2) zum induktiven Laden des Fahrzeugs, wobei das Fahrzeug eine Sekundärladeeinheit, ein Kamerasystem und eine Anzeigevorrichtung umfasst,mit den Schritten:d) Aufnahme eines Echtzeitbildes (1) des Fahrzeugumfelds mit dem Kamerasystem, wobei die Primärladeeinheit von dem Echtzeitbild erfasst ist,e) Anzeigen des Echtzeitbildes in der Anzeigevorrichtung,f) Einblenden von zumindest einer Führungslinie (3a, 3b) in das Echtzeitbild, wobei- die Richtung und/oder Krümmung der Führungslinie mit einem Lenkwinkeleinschlag des Fahrzeugs derart zusammenfällt, dass die Führungslinie der Trajektorie des Fahrzeugs bei dem Lenkwinkeleinschlag entspricht, und wobei- die Position der Überblendung der Führungslinie in dem Echtzeitbild des Fahrzeugumfelds so gewählt ist, dass die Führungslinie die Bewegungskurve Tder Sekundärladeeinheit des Fahrzeugs anzeigt,d) Wiederholen der Schritte a) bis c), um in Abhängigkeit von einer ...

Inductive power transfer system and method

Circuitry for inductive power transfer

Power coupling

Non-contact power reception device

NON-CONTACT POWER RECEPTION DEVICE 5 A non-contact power reception device that receives electric power from a power transmission device, the non-contact power reception device comprising a secondary side coil (22) configured to receive electric power from a power transmission device through a magnetic field, a charger (24) configured to receive the electric power received at the secondary side coil 1o (22), and a control unit (26) configured to stop the charger (24) after the power transmission device is stopped when charging is to be stopped.

VEHICLE

An electrically powered vehicle (1) includes: a floor panel (5) forming a lower surface of the electrically powered vehicle (1); a battery (26) disposed on a lower surface of the floor panel (5); and a power reception device (11) disposed below the floor panel (5) and configured to contactlessly receive electric power from a power transmission device (27) provided externally. The power reception device (11) has a lower surface that is located below a lower surface (74) of the battery (26). The electrically powered vehicle (1) is one of various kinds of vehicles such as a hybrid vehicle and an electric vehicle, in which protection of the battery (26) is achieved.

WIRELESS ENERGY TRANSFER IN LOSSY ENVIRONMENTS

Described herein are improved configurations for a wireless power transfer for electronic devices that include at least one source magnetic resonator including a capacitively- loaded conducting loop coupled to a power source and configured to generate an oscillating magnetic field and at least one device magnetic resonator, distal from said source resonators, comprising a capacitively-loaded conducting loop configured to convert said oscillating magnetic fields into electrical energy, wherein at least one said resonator has a keep-out zone around the resonator that surrounds the resonator with a layer of non-lossy material.

A WIRELESS POWER RECEIVING UNIT FOR RECEIVING POWER, A WIRELESS POWER TRANSFERRING UNIT FOR TRANSFERRING POWER, A WIRELESS POWER TRANSFERRING DEVICE AND USE OF WIRELESS POWER TRANSFERRING DEVICE

A wireless power transferring device (1), a wireless power transferring unit (3) and a wireless power receiving unit (5) for transferring and receiving power. The power receiving unit (5) comprises an induction coil (10) adapted to be subjected to an alternating magnetic field so that an alternating current is induced in the induction coil, a receiving concentrator core (12) adapted to concentrate the magnetic field wherein the receiving concentrator core is surrounded by a medium, and a receiving guide member (14) arranged to provide a smooth transition for the magnetic field between the medium and the concentrator core, and abutting the receiving concentrator core. The receiving guide member has a magnetic permeability in the range between the magnetic permeability of the receiving concentrator core and the medium.

NON-CONTACT POWER SUPPLY SYSTEM

In this contactless electricity supply system that, by means of at least magnetic coupling, supplies electricity contactlessly between an electricity transmission coil (11) provided to an electricity supply device (1) and an electricity reception coil (21) provided to a vehicle (2): the vehicle (2) is provided with a transmission means that, by means of wireless communication, transmits from the vehicle (2) to the electricity supply device (1) a startup signal that starts up the electricity supply device (1); the electricity supply device (1) is provided with a reception means that receives the startup signal and a control means that controls the electricity supply device on the basis of the startup signal received by the reception means; the transmission means transmits a first startup signal when the vehicle (2) is traveling, and transmits a second startup signal when the vehicle (2) is stopped; and the control means controls the electricity supply device according to a first control ...

POWER SUPPLY DEVICE, VEHICLE, AND NON-CONTACT POWER SUPPLY SYSTEM

The present invention is characterized by being provided with: a contactless electricity supply unit that supplies power contactlessly from an electricity transmission coil to an electricity reception coil by means of at least magnetic coupling, and that charges the battery of a vehicle; a contact electricity supply unit that supplies power to the battery of the vehicle by being electrically connected via a cable to a connection terminal provided to the vehicle; and a controller that controls the contactless electricity supply unit and the contact electricity supply unit. The present invention is further characterized in that when the battery of a first vehicle is being charged by one electricity supply method among the contactless electricity supply method of the contactless electricity supply unit and the contact electricity supply method of the contact electricity supply unit, and there is a request from a second vehicle for electricity supply by means of the other electricity supply ...

ELECTRIC POWER SUPPLY SYSTEM, VEHICLE AND METHOD OF OPERATING A VEHICLE

Electric power supply system, vehicle and method of operating a vehicle The invention relates to an electrical power supply system, in particular a traction system, of a vehicle, wherein the electrical power supply system (1) comprises a energy storage module, an inverter (3), an electric machine (4), a receiving device (5) adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction, and a passive electric circuit arrangement (8) adapted to connect the inverter (3), the electric machine (4), and the receiving device (5), wherein the passive electric circuit arrangement (8) comprises a first transmission circuit for transferring electric energy between the receiving device (3) and the electric machine (4), a second transmission circuit for transferring electric energy between the receiving device (5) and the inverter (3), and a third transmission circuit for transferring electric energy between the inverter (3) and the ...

SYSTEMS AND METHODS FOR BI-STATE IMPEDANCE CONVERSION IN WIRELESS POWER TRANSFER

One aspect provides a wireless power transmitter (802). The wireless power transmitter includes a transmit antenna (LI) configured to generate a field for wireless transmit power in both a first and second configuration. The wireless power transmitter further includes a first capacitor (CIA). The wireless power transmitter further includes at least one switch (SI, S2) configured to selectively connect the first capacitor in one of the first and second configuration. The first capacitor can be in series with the transmit antenna in the first configuration and in parallel with the transmit antenna in the second configuration.

DEVICE FOR CONTACTLESS TRANSMISSION OF ELECTRIC ENERGY

The invention relates to a device for contactless transmission of energy from a primary current lead traversed by alternating current (2) to a plurality of secondary, resonant load circuits (100, 200), each of which has at least one coil (5) drawing energy from the electromagnetic field of the current lead (2). The inventive device is used, for example, in industrial assemblage systems or in private passenger vehicles. Known systems can be problematic in the event of simultaneous use by several consumers. A consumer which is drawing little energy from the primary circuit impedes current flow through the primary circuit, and thus the supply for other consumers. Known solutions require decoupling devices on each user. The invention therefore seeks to supply several users with energy simply and independently of one another, by means of an energy transmission device. To this end, a pilot wire (8) runs parallel to the current lead (2) to which it is connected via several junctions (10, 11).

DEVICE FOR CONTACTLESS TRANSMISSION OF ELECTRIC ENERGY

The invention relates to a device for contactless transmission of energy fro m a primary current lead traversed by alternating current (2) to a plurality of secondary, resonant load circuits (100, 200), each of which has at least one coil (5) drawing energy from the electromagnetic field of the current lead (2). The inventive device is used, for example, in industrial assemblage systems or in private passenger vehicles. Known systems can be problematic in the event of simultaneous use by several consumers. A consumer which is drawing little energy from tire primary circuit impedes current How through the primary circuit, and thus tire supply for other consumers. Known solutions require decoupling devices on each user. The invention therefore seeks to supply several users with energy simply and independently of one another, by means of act energy transmission device. To this end, a pilot wire (8) runs parallel to the current lead (2) to which it is connected via several junctions (10, 11 ...

Method for controlling the inductive load of a user equipment and associated charging device for a motor vehicle

CHARGING DEVICE AND CONTACTLESS POWER SUPPLY DEVICE

Energy receiver, detection method, power transmission system, detection device, and energy transmitter

An energy receiver including a power receiver coil configured to wirelessly receive power transmitted from a power transmitter; a detection section configured to detect a foreign object; and a power storage section configured to supply power to the detection section during detection of the foreign object.

Power receiving device and power feeding system

A power receiving device and a power feeding system which are capable of performing communication and power feeding at the same time are provided. Further, a power receiving device and a power feeding system which are capable of stably performing communication during power feeding are provided. One embodiment of the present invention relates to a power receiving device which includes an antenna for communication and power feeding that receives AC power, a rectifier circuit that rectifies the received AC power including the modulation signal into DC power, a smoothing circuit that smoothes the resulting DC power, a power storage device that stores the smoothed DC power, a communication control unit that analyzes the modulation signal included in the AC power, and a transformer that is positioned between the antenna and the rectifier circuit and changes a reference potential of the AC power, and a power feeding device.

SYSTEMS, METHODS, AND APPARATUS FOR INCREASED FOREIGN OBJECT DETECTION LOOP ARRAY SENSITIVITY

This disclosure provides systems, methods and apparatus for detecting foreign objects. An apparatus for detecting a presence of an object is provided including a plurality of electrically conductive loops arranged in an array. The apparatus includes a sensor circuit configured to determine a characteristic associated with each of the plurality of loops. The apparatus includes a hardware processor configured to, for each loop of the plurality of loops, determine a parameter based on the characteristic associated with the loop and the characteristic associated with at least one adjacent loop. The hardware processor may be further configured to determine the presence of the object based on the parameter. The parameter may comprise a sum of a difference between the characteristic associated with the loop and a reference value for the characteristic, and a difference between the characteristic associated with each of the at least one adjacent loop and the reference value.

Power reception device and power transmission device

A power reception device includes a coil; an electric unit electrically connected to the coil; and a metal case that is disposed to be adjacent to the coil and accommodates the electric unit. The electric unit includes at least one active element. The metal case includes an a inner-side wall adjacent to the coil, and an outer-side wall that is positioned on the opposite side of the coil from the inner-side wall. The at least one active element is provided at a position closer to the outer-side wall than to the inner-side wall.

TRANSMISSION COIL AND POWER TRANSMISSION APPARATUS

A transmission coil configured to transmit electric power in water includes an annular electric wire through which an alternating current flows, and a first cover which includes non-conductive resin or non-magnetic resin and seals a periphery of the electric wire. The electric wire transmits the electric power via a magnetic field generated by flowing of the alternating current. The first cover includes a second cover which surrounds an outer peripheral surface of the electric wire in a radial direction with the non-conductive resin or the non-magnetic resin, and a self-bonding tape configured to seal an outer peripheral surface of the second cover.

Power transmission arrangement

The disclosure relates to a power transmission arrangement having an electromagnetic convertor unit, the input side of which can be coupled to an AC voltage source, a first DC voltage circuit, the input side of which is coupled to the electromagnetic converter unit and the output side of which can be coupled to a first electrical DC voltage sink, and which is designed to provide a first DC voltage on the output side, and a second DC voltage circuit, the input side of which is coupled to the electromagnetic converter unit and the output side of which can be coupled to a second electrical DC voltage sink, and which is designed to provide a second DC voltage on the output side, wherein one of the DC voltage circuits has a DC voltage converter for the purpose of adjusting its output-side DC voltage.

Multi-supply synchronization for wireless charging

Certain aspects of the present disclosure are generally directed to apparatus and techniques for wirelessly charging a device. An exemplary method generally includes receiving, at a first wireless power transfer device, a synchronization signal indicative of a phase for generating a wireless charging field, determining an adjusted phase for generating the wireless charging field based, at least in part, on the received synchronization signal and one or more measurements taken at least one of the first wireless power transfer device or a second wireless power transfer device, wherein the one or more measurements are indicative of a phase difference between the first wireless power transfer device and the second wireless power transfer device, and generating, at the first wireless power transfer device, the wireless charging field with the adjusted phase.

CONTACTLESS POWER TRANSMISSION DEVICE

A contactless power transmission device includes a switching unit that switches a power transmission line so that a first power is transmitted through the first line when an AC power supply outputs a first AC power and so that a second power is transmitted through a second line when the AC power supply outputs a second AC power. An impedance conversion unit is arranged on the second line that converts an impedance from an output of the AC power supply to a variable load when the second power is transmitted through the second line to approach an impedance from the output of the AC power supply to the variable load when the first power is transmitted through the first line.

System for wireless energy distribution in a vehicle

Described herein are improved capabilities for a system and method for wireless energy distribution to a mechanically removable vehicle seat, comprising a source resonator coupled to an energy source of a vehicle, the source resonator positioned proximate to the mechanically removable vehicle seat, the source resonator generating an oscillating magnetic field with a resonant frequency and comprising a high-conductivity material adapted and located between the source resonator and a vehicle surface to direct the oscillating magnetic field away from the vehicle surface, and a receiving resonator integrated into the mechanically removable vehicle seat, the receiving resonator having a resonant frequency similar to that of the source resonator, and receiving wireless energy from the source resonator, and providing power to electrical components integrated with the mechanically removable vehicle seat.

Methods and apparatus for positioning a vehicle using foreign object detection

In one aspect, an apparatus for determining alignment information of a vehicle is disclosed, the vehicle comprising an antenna circuit configured to modulate one or more electrical characteristics of the antenna circuit. The apparatus comprises multiple sensor circuits configured to generate multiple magnetic fields. At least one sensor circuit may be configured to sense the modulated electrical characteristic of the antenna circuit when the antenna circuit couples to the at least one sensor circuit via one of the magnetic fields. The apparatus may further comprise a controller circuit configured to determine alignment information of the vehicle based on the sensed modulated electrical characteristic.

Wireless power transmitter and receiver for vehicle

According to an embodiment of present invention, a wireless power transmitter for a vehicle that transfers power to a wireless power comprising: a resonance circuit comprising a coil assembly and/or a capacitor, wherein the coil assembly comprises first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a frequency full bridge driver driving each of coils included in the coil assembly individually, and a placement detection unit detecting a placement of the wireless power receiver.

NON-CONTACT POWER SUPPLY SYSTEM

A non-contact power supply system has a conversion circuit that converts power of a power transmission-side power supply, and outputs power to a power transmission coil. A power transmission-side controller controls the conversion circuit. A power reception coil receives power from the power transmission coil in a non-contact manner. The power reception coil supplies power to a load electrically connected to the power reception coil. A smoothing circuit smooths power received by the power reception coil. A sensor detects current or voltage in the smoothing circuit. A power reception-side controller acquires an encoded value from a detection value of the sensor. The power transmission-side controller measures an elapsed time between a previous rise and a current rise in a detection voltage that is detected by the sensor, and compares the elapsed time and an elapsed time threshold that is set in advance to acquire the encoded value.

VEHICLE ELECTRICAL SYSTEM WITH INVERTER, ENERGY STORE, ELECTRICAL MACHINE AND DC TRANSMISSION TERMINAL

The vehicle electrical system described includes an inverter, an electrical energy store, an electrical machine and a DC transmission terminal. The inverter is connected to the energy store via input current terminals. At least two phase current terminals of the inverter are connected to the electrical machine. The inverter has at least two H-bridges. The DC transmission terminal has a positive rail connected to at least one of the phase current terminals.

Resonance-type non-contact power supply system

Movable body equipment is provided with: a secondary-side resonance coil, which receives power from a primary-side resonance coil of power supply equipment; a rectifier, which rectifies the power received by the secondary-side resonance coil; and a secondary battery, to which to which the power rectified by the rectifier is supplied. A resonance-type non-contact power supply system is provided with: state of charge detection units, which detect the state of charge of the secondary battery; and an impedance estimation unit, which estimates an impedance estimation value for the secondary battery on the basis of the state of charge of the secondary battery. When the absolute value of the difference between the impedance estimation value and the current impedance value of the secondary battery exceeds a threshold, a determination unit determines that a foreign body is present between the primary-side resonance coil and the secondary-side resonance coil.

ALIGNMENT SYSTEM FOR WIRELESS ELECTRICAL POWER TRANSFER

A system to provide alignment between a source resonator and a capture resonator. The source resonator is configured to emit a magnetic charging signal or a magnetic beacon signal. The source resonator is coupled to an electrical power source that provides current to the source resonator. The source resonator emits the charging signal when the current exceeds a first threshold and emits the beacon signal when the current is below a second threshold. The capture resonator is configured to receive the charging signal and provide electrical power based on the charging signal. The system also includes a magnetic sensor configured to receive the beacon signal and provide a location signal indicative of a relative location between the transmit and capture resonators to a controller that provides an alignment signal indicative of a movement required to align the source resonator and the capture resonator.

Contactless power transmission system for transmitting power from power transmitter apparatus to power receiver apparatus, and supplying load device with desired voltage

A detection circuit detects at least one of a value of a current flowing through a power transmitting coil, and a value of a current or voltage generated by an auxiliary coil. A control circuit determines a transmitting frequency based on the value detected by the detection circuit, the transmitting frequency at least locally minimizing load dependence. The control circuit determines a voltage for the transmitting power at which an output voltage of a power receiver apparatus is equal to a predetermined target voltage when generating the transmitting power having the transmitting frequency determined, and controls the power supply circuit to generate the transmitting power having the transmitting frequency and voltage determined.

METHOD FOR PROVIDING VEHICLE CHARGING SERVICE, AND VEHICLE CHARGING SYSTEM

A vehicle is capable of receiving electric power supplied from a charger and capable of receiving electric power supplied from a charging mat. The charging mat is movable and capable of wireless power transfer. A method for providing a vehicle charging service includes a first step and a second step. The first step is giving, by a server, an instruction for installing the charging mat on a lane at which charging congestion is detected or predicted to occur, the charging congestion being traffic congestion for charging the electric power supplied from the charger. The second step is transmitting the electric power from the charging mat when the vehicle is detected above the charging mat installed on the lane in accordance with the instruction, and transmitting no electric power from the charging mat when the vehicle is not detected above the charging mat.

Systems and methods for low power excitation in high power wireless power systems

Disclosed herein are systems and methods for low power excitation of wireless power transmitters configured to transmit high power. The exemplary systems and methods include disabling a power factor correction circuit of the transmitter, and adjusting one or more variable impedance components of the impedance network to obtain a minimum attainable impedance. The variable impedance components can be configured to operate between the minimum attainable impedance and a maximum attainable impedance. The systems and methods can include adjusting a phase shift angle associated with one or more transistors of the inverter and driving the transmitter such that the transmitter resonator coil generates a magnetic flux density less than or equal to a field safety threshold.

INDUCTIVE POWER TRANSFER WITH INDUCTIVE POWER TRANSFER PAD

ACTIVE HARMONICS CANCELLATION

Electrical Powered Vehicle and Power Feeding Device for Vehicle

An electrical powered vehicle includes a secondary self-resonant coil, a secondary coil, a rectifier, and a power storage device. The secondary self-resonant coil is configured to be magnetically coupled with a primary self-resonant coil of a power feeding device by magnetic field resonance, and allow reception of high frequency power from the primary self-resonant coil. The secondary coil is configured to allow reception of electric power from the secondary self-resonant coil by electromagnetic induction. The rectifier rectifies the electric power received by the secondary coil. The power storage device stores the electric power rectified by the rectifier.

Wireless power feeder, wireless power transmission system, and table and table lamp using the same

Power is fed from a feeding coil to a receiving coil by magnetic resonance. A drive circuit outputs an IN signal generated by an oscillator as a DR signal to alternately turn ON/OFF switching transistors at a resonance frequency, whereby AC current is fed to the feeding coil, and then the AC current is fed from the feeding coil to the receiving coil. An enable signal generation circuit generates an EN signal at a frequency lower than the resonance frequency. The drive circuit outputs the DR signal only while the EN signal assumes a high level. Transmission power from a wireless feeder to a wireless receiver is controlled by adjusting the duty ratio of the EN signal.

Wireless powered television

A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.

Wireless energy transfer for vehicles

A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver including a load configured to power the drive system of a vehicle using electrical power, and a second electromagnetic resonator adapted to be housed upon the vehicle configured to be coupled to the load, wherein the second electromagnetic resonator is moveable relative to the first electromagnetic resonator while power is transferred, the second electromagnetic resonator configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, and a second electromagnetic resonator adapted to be housed upon the vehicle and comprising an inductive loop and configured to be coupled to the load via a capacitive network comprising at least one capacitor in series with the inductive loop and one capacitor in parallel with the inductive loop.

Inductor conductor for contactless energy transfer and a use for same in vehicles

An inductor conductor is used for the contactless transfer of electrical energy from at least one first device to at least one second device, for example from the power supply of a section of a trip route to a magnetic levitation train. The inductor conductor has a plurality of individual conductors which are arranged along a longitudinal direction. In a periodically repeating region along the longitudinal direction of the individual conductors, the individual conductors are divided into at least two parts, each part spatially separated from the other, and lie adjacent to undivided individual conductors, thus forming capacitors. In addition, a method uses the inductor conductor, for example in vehicles, wherein the inductor conductor acts as the primary winding of a transformer.

Electrical charging system having energy coupling arrangement for wireless energy transmission therebetween

An electrical charging system (ECS) to electrically charge a battery includes a power transmitter, an energy coupling arrangement, at least one electrical signal shaping device (ESSD) including a controller, and an alignment means. The arrangement includes a first transducer disposed external to the vehicle and a second transducer attached with the vehicle. The alignment means communicates with the vehicle to ensure repeatable vehicle positioning so that the second transducer is positioned relative to the first transducer so that the second transducer receives the energy produced by the power transmitter wirelessly transmitted from the first transducer. The energy received by the second transducer is electrically shaped by the ESSD and further electrically transmitted through the ESSD as controlled by the controller to electrically charge the ESD. Methods to operate and electrically transmit energy through the ECS to electrically charge the EDS are also presented.

Coil unit, non-contact power transmission device, non-contact power reception device, non-contact power supply system, and vehicle

A coil unit performs at least one of transmission and reception of electric power using electromagnetic resonance between the coil unit and a primary resonance coil disposed to face the coil unit. The coil unit includes a secondary resonance coil that includes a plurality of coils, and that electromagnetically resonates with the primary resonance coil. A first coil among the plurality of coils is disposed in a manner such that a magnetic field generated by the first coil has a phase opposite to a phase of a magnetic field generated by at least one coil other than the first coil among the plurality of coils, with respect to a plane that faces the primary resonance coil.

Inductiive power supply system

A power supplying device ( 20 ) is provided for providing electrical power to a power receiving device ( 30 ), the power supplying device ( 20 ) comprising two plates ( 22 ), two electrode structures ( 23, 43, 81, 82 ) being arranged to be coupled to an AC power source ( 41 ) and at least one power transmitter ( 21 ). Each electrode structure ( 23, 43, 81, 82 ) is attached to one of said two plates ( 22 ). The power transmitter ( 21 ) is situated in between the two plates ( 22 ) and comprises an electrically conductive coil ( 28 ) and at least two electrical contacts ( 25 ) coupled to the electrically conductive coil ( 28 ). The plates ( 22 ) and the power transmitter ( 21 ) are arranged such that the power transmitter ( 21 ) is movable in a direction parallel to the surfaces of the plates ( 22 ) with the electrical contacts ( 25 ) in contact with the respective two electrode structures ( 23, 43, 81, 82 ) for obtaining power from the AC power source ( 41 ).

Wireless power charging using point of load controlled high frequency power converters

An apparatus for wirelessly charging a battery of an electric vehicle is provided with a point of load control. The apparatus includes a base unit for generating a direct current (DC) voltage. The base unit is regulated by a power level controller. One or more point of load converters can be connected to the base unit by a conductor, with each point of load converter comprising a control signal generator that transmits a signal to the power level controller. The output power level of the DC voltage provided by the base unit is controlled by power level controller such that the power level is sufficient to power all active load converters when commanded to do so by any of the active controllers, without generating excessive power that may be otherwise wasted.

Power receiving device and power feeding system

A power receiving device and a power feeding system which are capable of performing communication and power feeding at the same time are provided. Further, a power receiving device and a power feeding system which are capable of stably performing communication during power feeding are provided. One embodiment of the present invention relates to a power receiving device which includes an antenna for communication and power feeding that receives AC power, a rectifier circuit that rectifies the received AC power including the modulation signal into DC power, a smoothing circuit that smoothes the resulting DC power, a power storage device that stores the smoothed DC power, a communication control unit that analyzes the modulation signal included in the AC power, and a transformer that is positioned between the antenna and the rectifier circuit and changes a reference potential of the AC power, and a power feeding device.

Resonance-type non-contact power supply system

A resonance-type non-contact power supply system includes a power-transmission-side metal shield to cover an area around a primary coil and a primary resonance coil. A coaxial cable outer conductor of a power-transmission-side coaxial cable and the power-transmission-side metal shield are threadedly engaged using a coaxial male connector and a coaxial female connector.

Wireless power transfer system coil arrangements and method of operation

This disclosure provides systems, methods and apparatus for wireless power transfer and particularly wireless power transfer to remote systems such as electric vehicles. In one aspect the disclosure provides for an apparatus for wirelessly transmitting power. The apparatus includes a first conductive structure configured to generate a first magnetic field in response to receiving a first time-varying signal from a power source. The apparatus includes a second conductive structure configured to generate a second magnetic field in response to receiving a second time-varying signal from the power source. The first and second structures are positioned to maintain a substantial absence of mutual coupling between the first and second magnetic fields.

WIRELESS POWER TRANSMITTING DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM

A wireless power transmitting device transmits power by wireless to a wireless power receiving device through magnetic coupling between a feeding coil and a receiving coil and includes: a feeding circuit including a power conversion circuit that converts DC power into AC power of a drive frequency and a feeding coil unit including the feeding coil that receives the AC power supplied from the power conversion circuit to generate an AC magnetic field; and a control circuit Stu that controls the amount of magnetic flux generated from the feeding coil. The control circuit Stu calculates a separation distance between the feeding and receiving coils in their opposing direction from the circuit characteristic value of the wireless power transmitting device in a state where the amount of magnetic flux generated from the feeding coil is controlled so as to be constant. 1. A wireless power transmitting device that transmits power by wireless to a wireless power receiving device through magnetic coupling between a feeding coil and a receiving coil , the wireless power transmitting device comprising:a feeding circuit including a power conversion circuit that converts DC power into AC power of a drive frequency and the feeding coil that receives the AC power supplied from the power conversion circuit to generate an AC magnetic field; anda control circuit that controls an amount of magnetic flux generated from the feeding coil,wherein the control circuit calculates a separation distance between the feeding and receiving coils in their opposing direction from a circuit characteristic value of the wireless power transmitting device in a state where the amount of magnetic flux generated from the feeding coil is controlled so as to be constant.2. The wireless power transmitting device as claimed in claim 1 ,wherein the feeding circuit further includes a power supply circuit that converts power supplied from an external power supply into the DC power and outputs the DC power to the ...

DEVICE FOR GENERATING A MAGNETIC FIELD, IN PARTICULAR FOR AN INDUCTIVE CHARGING SYSTEM, AND PRIMARY DEVICE OF AN INDUCTIVE CHARGING SYSTEM FOR DYNAMICALLY CHARGING VEHICLES

The invention relates to a device for generating a magnetic field, in particular for a primary apparatus of an inductive charging system, as well as to a primary apparatus of an inductive charging system for the contactless, inductive power transfer to transport means. With the objective of continually generating a magnetic field along a specific traveling direction, the device is provided with at least one electrical conductor for generating the magnetic field, a supply unit for generating an alternating current for the at least one electrical conductor, and a detection unit for detecting a secondary charging system. This device is characterized by a communication unit for transmitting and receiving data to/from an identical device, wherein the device is designed to control the signal control unit by means of the detection unit and/or by means of the received data, and hence the generation of the magnetic field for inductive power transfer. With respect to the primary apparatus, the latter has a plurality of interconnected devices for generating a magnetic field, wherein the devices have a plurality of electrical conductors for generating a magnetic field. In addition, the arrangement and actuation of electrical conductors of the devices are designed in such a way that a predetermined magnetic field can be generated by a portion of the electrical conductors, and this magnetic field can be displaced by correspondingly actuating the electrical conductors with a static motion. 2. The device according to claim 1 ,whereinthe communication unit is designed to transmit and receive the data in a wireless and/or corded manner, and wherein detection unit is designed to identify the secondary charging system, in particular its kind and type, and generate the mentioned data based on an identified secondary charging system.3. The device according to claim 1 ,whereinthe device is designed to be supplied with a direct current, and wherein the supply unit, in particular with a ...

Buffering energy storage systems for reduced grid and vehicle battery stress for in-motion wireless power transfer systems

An energy buffer including an electrochemical capacitor can be added to the primary circuit and/or to the secondary circuit of in-motion wireless power transfer system. The energy buffer(s) can smoothen the power delivered by the power grid and captured by a vehicle passing over an array of transmit coils through in-motion wireless power transfer. The reduction in the transient power transfer can reduce the peak current that flows through various components of the in-motion wireless power transfer system including a vehicle battery on the vehicle, and prolong the life of the in-motion wireless power transfer system.

Power transmission device, power reception device, vehicle, and contactless power feeding system

A contactless power feeding system is configured to supply power from a power transmission unit to a power reception unit in a contactless manner. The contactless power feeding system includes a raising and lowering mechanism that moves the power reception unit between a standby position and a power reception position facing the power transmission unit, and an ECU for controlling the raising and lowering mechanism. After the power reception unit has been moved to the power reception position and during reception of power from the power transmission unit, when a distance between the power transmission unit and the power reception unit becomes greater than the distance at a start of the reception of power, the ECU operates the moving device to bring the power reception unit closer to the power transmission unit. Consequently, a reduction in power transfer efficiency during power transmission can be prevented.

Power transmitter

According to the present disclosure, a power transmitter includes a first coil configured to wirelessly transmit power to a second coil of a power receiver, a direct current (DC)/alternating current (AC) converter configured to convert DC power into AC power and supply the AC power to the first coil, and a controller configured to perform frequency control for selecting a frequency of the AC power. The controller at least selects the frequency so that the DC power is less than or equal to withstand power of the DC/AC converter regardless of an amount of misalignment of the second coil with respect to the first coil.

Resonators for wireless power transfer systems

The disclosure features transmitters for wireless power transfer that include first and second coils each having at least one loop extending in a first plane and a controller configured to drive the first and second coils with electrical currents during operation of the transmitter, where the controller is configured so that during operation of the transmitter: in a first mode of operation, the controller drives the first and second coils to generate a magnetic field having a dipole moment that is parallel to the first plane to wirelessly transmit power to first and second receivers; and in a second mode of operation, the controller drives at least one of the first and second coils to generate a magnetic field having a dipole moment that is orthogonal to the first plane to wirelessly transmit power to a third receiver.

Contactless power receiving device, vehicle equipped with the same, contactless power transmitting device, and contactless power transfer system

A resonance coil of a vehicle resonates with a resonance coil of a power transmitting device via an electromagnetic field to thereby receive alternating-current power output from the resonance coil in a noncontact manner. An inverter receives the alternating-current power, received by the resonance coil, from an electromagnetic induction coil, converts the alternating-current power to direct-current power and outputs the direct-current power to a power line. In addition, the inverter converts direct-current power, received from the power line, to alternating-current power and outputs the alternating-current power to the electromagnetic induction coil in order to output electric power from the resonance coil to the resonance coil of the power transmitting device, and electric power is supplied to the resonance coil by the electromagnetic induction coil.

Vehicle, electric device, and power transmission/reception system

A vehicle includes: a reception device receives power for running the vehicle in a non-contact manner using electromagnetic field resonance; and a transmission device transmits power supplied to a device inside the vehicle in a non-contact manner using the electromagnetic field resonance. An electromagnetic field frequency used by the reception device setting a different electromagnetic field frequency used to transmit power. To set the electromagnetic field frequency used by the reception device to receive power and the electromagnetic field frequency used by the transmission device to transmit power such that the electromagnetic field frequency used to receive power is lower than the electromagnetic field frequency used by the transmission device to transmit power. The power received by the reception device in a non-contact manner from an external transmission device outside the vehicle to be larger than the power transmitted by the transmission device in a non-contact manner.

CONTACTLESS POWER SUPPLY DEVICE, CONTACTLESS POWER RECEPTION DEVICE, AND CONTACTLESS POWER SUPPLY SYSTEM

A contactless power supply device that supplies electric power to a vehicle in a contactless manner, includes: a power transmission resonance circuit; a power source circuit supplying direct-current power; and a power transmission circuit converting the direct-current power of the power source circuit into alternating-current power and supplying alternating-current power to the power transmission resonance circuit. The power transmission circuit includes: an inverter circuit converting the direct-current power of the power source circuit into alternating-current power; and a power transmission-side immittance conversion circuit adjusting the alternating-current power of the inverter circuit and supplies the adjusted alternating-current power to the power transmission resonance circuit. The ratio of a characteristic impedance of the power transmission-side immittance conversion circuit to an impedance backward on the power transmission resonance circuit side from the power transmission-side immittance conversion circuit is adjusted such that harmonic components in the alternating-current power of the inverter circuit becomes lessened. 1. A contactless power supply device that supplies electric power to a vehicle in a contactless manner , comprising:a power transmission resonance circuit;a power source circuit that supplies direct-current power; anda power transmission circuit that converts the direct-current power of the power source circuit into alternating-current power and supplies the alternating-current power to the power transmission resonance circuit, whereinthe power transmission circuit includes:an inverter circuit that converts the direct-current power of the power source circuit into alternating-current power; anda power transmission-side immittance conversion circuit that adjusts the alternating-current power of the inverter circuit and supplies the adjusted alternating-current power to the power transmission resonance circuit, anda ratio of a ...

POWER TRANSMITTING DEVICE AND POWER RECEIVING DEVICE

A power transmitting device is configured to perform a “power transmission frequency adjustment control” applied to adjust a power transmission frequency representing a frequency of power to be transmitted. A power receiving device is configured to perform a “resonance frequency adjustment control” applied to adjust a resonance frequency of a power receiving unit contactlessly receiving the power transmitted from the power transmitting device. The power transmitting device uses control information received from the power receiving device to determine whether the power receiving device has a function of performing the resonance frequency adjustment control applied to adjust the resonance frequency of the power receiving unit. When the power receiving device has the function of performing the resonance frequency adjustment control, the power transmitting device selects one of the power transmission frequency adjustment control and the resonance frequency adjustment control that has a higher resolution. 1. A power receiving device comprising:a power receiving unit configured to contactlessly receive alternating-current power transmitted from a power transmitting device; anda controller configured to adjust a resonance frequency of the power receiving unit,the controller being configured to use information received from the power transmitting device to determine whether the power transmitting device has a function of adjusting a power transmission frequency representing a frequency of the power transmitted, and use a result of the determination to determine whether to perform the control applied to adjust the resonance frequency.2. The power receiving device according to claim 1 , wherein the controller is configured to:when the power transmitting device does not have the function of adjusting the power transmission frequency, adjust the resonance frequency; andwhen the power transmitting device has the function of adjusting the power transmission frequency, compare a ...

Method and apparatus for selectively performing full bridge control and half bridge control in wireless power transfer system using lccl-s resonant network

A method for selectively performing a full bridge control and a half bridge control in a WPT system using an LCCL-S resonant network may include: performing the full bridge control by controlling the switches not connected in series of the full bridge inverter to operate simultaneously; calculating a coupling coefficient of the WPT system; determining whether it is possible to switch the full bridge control to the half bridge control based on the calculated coupling coefficient; in response to determining that it is possible to switch the full bridge control to the half bridge control, calculating a load of the WPT system; and performing the half bridge control for the full bridge inverter based on the calculated load.

Inductive power transfer system and method

Foreign object detection apparatus for an IPT system, includes a control means adapted to detect the presence of a foreign object on or adjacent to an IPT primary pad of the system.

Modular wireless electrical system

A wireless modular power transfer system includes electric power modules and RF converter circuitry within the electric power modules that meets voltage and power characteristics of the electric power modules. Sensor data is processed to determine a wireless power transfer path. An electric power module is established as a power source by aligning RF converter circuitry as a transmitter, and an electromagnetic field is established as a wireless power transfer area. An electric power module is established as an electric load by aligning RF converter circuitry as a receiver. Power transfer between the electric power modules is controlled through the wireless power transfer area.

Device and Method for the Detection of an Interfering Body in a System for the Inductive Transfer of Energy and a System for the Inductive Transfer of Energy

The invention relates to a method and an apparatus for detecting at least one interfering body in a system for inductive energy transmission, wherein the system includes at least one primary coil unit, wherein the apparatus includes at least one interfering body detector means, wherein the at least one interfering body detector means includes at least one field coil means and at least one detector coil means which is assigned to the at least one field coil means, wherein the apparatus includes at least one evaluation means, wherein the interfering body is detectable depending on the state of coupling and/or the change in the state of coupling, wherein the apparatus includes at least one compensation means.

CONTACTLESS POWER TRANSMISSION SYSTEM FOR TRANSMITTING POWER FROM POWER TRANSMITTER APPARATUS TO POWER RECEIVER APPARATUS, AND SUPPLYING LOAD DEVICE WITH DESIRED VOLTAGE

A detection circuit detects at least one of a value of a current flowing through a power transmitting coil, and a value of a current or voltage generated by an auxiliary coil. A control circuit determines a transmitting frequency based on the value detected by the detection circuit, the transmitting frequency at least locally minimizing load dependence. The control circuit determines a voltage for the transmitting power at which an output voltage of a power receiver apparatus is equal to a predetermined target voltage when generating the transmitting power having the transmitting frequency determined, and controls the power supply circuit to generate the transmitting power having the transmitting frequency and voltage determined. 1. A control apparatus for a power transmitter apparatus that transmits power to a power receiver apparatus comprising a power receiving coil , in a contactless manner ,wherein the power transmitter apparatus comprises: a power transmitting coil, an auxiliary coil electromagnetically coupled to the power transmitting coil, and a power supply circuit that generates transmitting power having a variable voltage and a variable frequency and supplies the transmitting power to the power transmitting coil,wherein the control apparatus comprises:a detection circuit that detects at least one of a value of a current flowing through the power transmitting coil, and a value of a current or voltage generated by the auxiliary coil; anda control circuit that determines a transmitting frequency based on the value detected by the detection circuit, the transmitting frequency at least locally minimizing dependence of an output voltage of the power receiver apparatus on a load value of the power receiver apparatus, determines a voltage for the transmitting power at which the output voltage of the power receiver apparatus is equal to a predetermined target voltage when generating the transmitting power having the transmitting frequency determined, and controls ...

Power reception device and power transmission device

In a power reception device, a ferrite includes an annular coil mount on which a power reception coil is disposed at the facing surface side, and a projection projecting in a power reception direction from a portion of the coil mount located on an inner side of the power reception coil, a back surface of the ferrite is provided with a hollow portion formed of the projection and the coil mount, the power reception coil is provided at the outer peripheral surface side of the projection, and a filter coil is provided along an inner peripheral surface of the hollow portion.

Energy receiver, detection method, power transmission system, detection device, and energy transmitter

An energy receiver includes: a power receiver coil configured to wirelessly receive power transmitted from a power transmitter; a detection section configured to detect a foreign object; and a power storage section configured to supply power to the detection section during detection of the foreign object.

ARTICLE TRANSPORT VEHICLE AND ARTICLE TRANSPORT FACILITY

The present disclosure provides an article transport vehicle and an article transport facility capable of allowing the article transport vehicles to share power. In addition, the present disclosure provides the article transport vehicle and the article transport facility capable of normally managing the article transport vehicle even though a non-power supply section, in which no electric supply line is installed along a rail, is lengthened. According to the present disclosure, it is possible to normally manage the article transport vehicle and relatively easily ensure power stored in the battery even though a supply of power from the electric supply line is cut off or no electric supply line is installed along the traveling rail. 1. An article transport vehicle comprising:a vehicle main body configured to transport an article while traveling along a traveling rail;a first power source device configured to receive power from an electric supply line installed at the traveling rail and supply the power to the vehicle main body; anda second power source device comprising a battery and a power sharing module disposed on the vehicle main body, the second power source device being configured to supply power, stored in the battery, to the vehicle main body.2. The article transport vehicle of claim 1 ,wherein the second power source device is configured such that the battery receives the power from the first power source device and stores the power.3. The article transport vehicle of claim 1 ,wherein the second power source device is configured such that the battery shares power with a battery of another vehicle by means of the power sharing module.4. The article transport vehicle of claim 1 , a vehicle module configured to travel along the traveling rail; and', 'a hoist device disposed below the vehicle module and configured to support the article, and, 'wherein the vehicle main body compriseswherein the second power source device is disposed on the hoist device.5. The ...

VEHICLE-MOUNTING STRUCTURE FOR CONTACTLESS POWER RECEPTION DEVICE

A power reception coil is a circular coil having a hollow portion formed in a center portion of the power reception coil in a radial direction. The power reception coil, a resonant capacitor, and a magnetic member are arranged in a power reception coil unit forming a contactless power reception device. The power reception coil unit is attached to a member element serving as a frame member of a vehicle body. A hollow portion corresponding region which is a portion of the power reception coil unit corresponding to the hollow portion of the power reception coil is in contact with the member element. 14.-. (canceled)5. A vehicle-mounting structure for a contactless power reception device in which the contactless power reception device including a power reception coil configured to contactlessly receive power by way of magnetic coupling with a power transmission coil on a road surface side is mounted in a lower portion of a vehicle body of a vehicle , whereinthe power reception coil is a circular coil having a hollow portion formed in a center portion of the power reception coil in a radial direction,the power reception coil, a resonant capacitor, and a magnetic member are arranged in a power reception coil unit forming the contactless power reception device,the power reception coil unit is attached to a member element serving as a frame member of the vehicle body, anda hollow portion corresponding region which is a portion of the power reception coil unit corresponding to the hollow portion of the power reception coil is in contact with the member element.6. The vehicle-mounting structure for the contactless power reception device according to claim 5 , wherein the member element is a suspension member connected to the vehicle body in a normal state and configured to be detachable from the vehicle body in response to input of a predefined impact load into the member element.7. The vehicle-mounting structure for the contactless power reception device according to claim 5 ...

Powering and/or charging with a plurality of protocols

A system is descried for use in wireless charging or wireless powering. The system includes a base for wirelessly charging and/or wirelessly powering and a receiver capable of receiving electricity wirelessly from the base. The receiver is associated with a battery and/or device. The base and/or the receiver is capable of detecting and operating under a plurality of power protocols and/or a plurality of communicating protocols, thereby allowing the base to transfer electricity wirelessly to the battery and/or device in a manner consistent with a common communication and/or common power protocol shared between the base and the receiver.

Methods and circuits configured to provide for multi-phase wireless power transfer

A method of providing wireless power transfer can include receiving multi-phase power at a transmitter portion of a multi-phase wireless power transfer system that is associated with an electrical equipment rack that is configured to house a plurality of electrical components and wirelessly transferring the multi-phase power from the transmitter portion to a receiver portion of the multi-phase wireless power transfer system at a power level that is configured to operate the plurality of electrical components.

Charging control method, electric vehicle, and charging apparatus using the same

A charging control method is provided for an electric vehicle (EV) receiving a power from a charging apparatus. The method includes detecting a signal from an implanted medical device (IMD) and determining a limitation on a charging output based on whether the signal from the IMD is detected. Information related to the limitation on the charging output is then transmitted to the charging apparatus which provides power to the electric vehicle.

Alignment using signals from a secondary device before wireless power transfer

An apparatus includes a ping detection module that detects a ping signal transmitted from a secondary pad to a primary pad. The secondary pad is located on a mobile device and the primary pad is located on a stationary wireless power transfer (“WPT”) device. The stationary WPT device transmits power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation. The apparatus includes a signal strength module that determines a signal strength of the ping signal received at the primary pad, and an alignment module that determines an amount of alignment of the secondary pad with respect to the primary pad based on the determined signal strength of the received ping signal.

METHODS AND SYSTEMS FOR ALIGNMENT OF WIRELESS CHARGING MODULES

An automotive vehicle includes a vehicle-based charging unit including a receiving unit configured to receive power from a ground-based charging unit, the receiving unit including a multi-coil receiver, a first actuator operably coupled to the vehicle-based charging unit and configured to adjust a first position of the vehicle-based charging unit relative to the ground-based charging unit, and a controller configured to selectively actuate the first actuator. The controller is configured to receive first performance indicator data indicating a first alignment between the charging units, determine an alignment error between the charging units and calculate a first position adjustment of the vehicle-based charging unit, automatically control the first actuator to implement the first position adjustment of the vehicle-based charging unit, and receive second performance indicator data indicating a second alignment between the charging units, the second alignment resulting in a desired power transfer efficiency between the charging units. 1. A method for adjusting a relative position of a vehicle-based charging unit of a vehicle and a ground-based charging unit , comprising:providing a first actuator operably coupled to the vehicle-based charging unit and configured to adjust a first position of the vehicle-based charging unit relative to the ground-based charging unit and a controller configured to selectively actuate the first actuator;receiving, by the controller, first performance indicator data indicating a first alignment between the vehicle-based charging unit and the ground-based charging unit, the first performance indicator data indicating a misalignment between the vehicle-based charging unit and the ground-based charging unit;determining, by the controller, an alignment error between the vehicle-based charging unit and the ground-based charging unit and calculating a first position adjustment of the vehicle-based charging unit;automatically controlling, by ...

Unmanned aerial vehicle, unmanned aerial vehicle system, and battery system

An unmanned aerial vehicle includes a main body, a propulsion assembly including a rotary blade and a motor to rotate the rotary blade about a rotation axis. The propulsion assembly is attached to the main body and further includes a rechargeable battery to supply electric power to the propulsion assembly, a frame portion surrounding an outside of the rotary blade in a radial direction, and a power receiving coil to provide non-contact power feeding. The power receiving coil is electrically connected to the battery, has a frame shape along the frame portion, and is provided in the frame portion.

Contactless power transfer system and power transmission device

A contactless power transfer system includes a power supply ECU configured to control an inverter to stop power transmission from a power transmission unit when a current generated in the power transmission unit exceeds a predetermined threshold value due to short-circuiting of a power reception coil. The power supply ECU estimates a coupling state between a power transmission coil and the power reception coil, and changes the predetermined threshold value in accordance with the estimated coupling state.

Impedance tuning

The disclosure features wireless power transfer systems that include a power transmitting apparatus configured to wirelessly transmit power, a power receiving apparatus connected to an electrical load and configured to receive power from the power transmitting apparatus, and a controller connected to the power transmitting apparatus and configured to receive information about a phase difference between output voltage and current waveforms in a power source of the power transmitting apparatus, and to adjust a frequency of the transmitted power based on the measured phase difference.

DYNAMIC WIRELESS POWER TRANSFER BASE PAD

A dynamic wireless power transfer base pad can include a housing, a first conductor, a second conductor, and a third conductor. The first conductor can be disposed within the housing substantially along a circumference and can be configured to conduct a first current to produce a first magnetic field. The second conductor can be disposed at a first end within the housing and can be configured to conduct a second current to produce a second magnetic field. A magnetic field at the first end can include a constructive superimposition of the first magnetic field with the second magnetic field. The third conductor can be disposed at a second end within the housing and can be configured to conduct a third current to produce a third magnetic field. A magnetic field at the second end can include a constructive superimposition of the first magnetic field with the third magnetic field. 1. A dynamic wireless power transfer base pad , comprising:a housing having a simple closed curve shape defined by a first axis and a second axis, having a first end along the first axis, and having a second end along the first axis;a first conductor disposed within the housing substantially along a circumference of the housing and configured to conduct a first current to produce a first magnetic field;a second conductor disposed within the housing at the first end and configured to conduct a second current to produce a second magnetic field so that a magnetic field at the first end comprises a constructive superimposition of the first magnetic field with the second magnetic field; anda third conductor disposed within the housing at the second end and configured to conduct a third current to produce a third magnetic field so that a magnetic field at the second end comprises a constructive superimposition of the first magnetic field with the third magnetic field,wherein the dynamic wireless power transfer base pad is configured to be installed at least one of under a road, next to the road, or ...

INDUCTIVE WIRELESS CHARGING PAD FOR ELECTRIC VEHICLES REINFORCED WITH NON-CONDUCTIVE ELEMENTS

An apparatus for inductive wireless charging for electric vehicles reinforced with non-conductive elements is disclosed. An apparatus includes a wireless power transfer (“WPT”) pad that includes at least one coil for wireless power transfer and a ferrite structure. The apparatus includes a solid material that the WPT pad is encased in. The apparatus includes at least one rigid member encased within the solid material. The at least one rigid member is configured to provide structural reinforcement to the solid material and/or WPT pad. The rigid member is non-metallic. 1. An apparatus , comprising:a wireless power transfer (“WPT”) pad comprising at least one coil for wireless power transfer and a ferrite structure;a solid material, wherein the WPT pad is encased in the solid material;at least one rigid member encased within the solid material, the at least one rigid member configured to provide structural reinforcement to the solid material and/or WPT pad, wherein the rigid member is non-metallic.2. The apparatus of claim 1 , wherein the rigid member has a cylindrical shape and is sized to replace metal rebar within the solid material.3. The apparatus of claim 1 , wherein the solid material claim 1 , the WPT pad claim 1 , and the at least one rigid member form a pad structure for vehicular traffic claim 1 , the pad structure comprising characteristics that meet regulatory transportation standards.4. The apparatus of claim 1 , wherein the pad is embedded in an area of vehicular traffic.5. The apparatus of claim 1 , wherein the at least one rigid member supports the WPT pad prior to forming the solid material around the WPT pad and the at least one rigid member.6. The apparatus of claim 1 , wherein the at least one coil is placed below the at least one non-metallic claim 1 , rigid member within the solid material.7. The apparatus of claim 1 , wherein the at least one coil is placed above the at least one non-metallic claim 1 , rigid member within the solid material.8. ...

WIRELESS POWER TRANSFER WITH ACTIVE FIELD CANCELLATION USING MULTIPLE MAGNETIC FLUX SINKS

A wireless power transfer pad for wireless power transfer with active field cancellation using multiple magnetic flux sinks includes a ferrite structure, a center coil positioned adjacent to the ferrite structure, and a plurality of side coils positioned around a perimeter of the center coil and positioned adjacent to the ferrite structure. A direction of current flow of the center coil is opposite a current flow in each of the plurality of side coils such that current flowing in a portion of the center coil adjacent to a portion of a side coil of the plurality of side coils is in a same direction as current in the portion of the side coil. 1. A wireless power transfer (“WPT”) pad comprising:a ferrite structure;a center coil positioned adjacent to the ferrite structure; anda plurality of side coils positioned around a perimeter of the center coil and positioned adjacent to the ferrite structure,wherein a direction of current flow of the center coil is opposite a current flow in each of the plurality of side coils such that current flowing in a portion of the center coil adjacent to a portion of a side coil of the plurality of side coils is in a same direction as current in the portion of the side coil.2. The WPT pad of claim 1 , wherein the ferrite structure comprises a planar surface and the center coil and the plurality of side coils are wound parallel to the planar surface.3. The WPT pad of claim 1 , wherein claim 1 , for each side coil of the plurality of side coils claim 1 , a product of current in the center coil and a number of turns of the center coil is equal to or greater than a product of current in a side coil of the plurality of side coils and a number of turns of the side coil.4. The WPT pad of claim 1 , wherein claim 1 , for a switching frequency of current in the center coil and the plurality of side coils claim 1 , wherein the direction of current flow of the center coil being opposite the current flow in each of the plurality of side coils ...

INDUCTIVE POWER TRANSFER DEVICE, ESPECIALLY FOR VEHICLE

Device for providing a magnetic field for transfer of energy A device for providing an inductive power transfer (). The device comprises a switching power supply (VI) for providing electrical power to the device and an inductor coil (). The device further comprises a resonance adjustment module () for adjusting the resonance frequency of the circuit comprising the inductor coil and a control circuit arranged to control the module such that the resonance frequency is substantially constant. The mutual and leakage inductance of a transmitter coil and of a receiver coil change if the receiver coil is placed above the transmitter coil. The circuit is utilised for inductive power transfer to a vehicle, possibly in a parking space. 1. Device for providing a magnetic field for transfer of energy , the device comprising:{'b': 1', '1, 'a switching power supply for providing electrical power to the device, comprising a switching voltage source V and a first resonance bandpass filter, said voltage source V being configured to transform a square wave voltage input to sinusoidal and in phase;'}an inductor coil for providing the alternating magnetic field;a resonance adjustment module for adjusting an inductor resonance frequency of an inductor resonance circuit comprising the inductor coil;{'b': '140', 'a control module arranged to control the resonance adjustment module such that the inductor resonance frequency is substantially constant a transmitter coil ,'}{'sub': x', 'x, 'b': '140', 'wherein the resonance adjustment module comprises a first adjustable capacitance Cprovided in series with the inductor coil and a second adjustable capacitor module Cy provided parallel to the first adjustable capacitance Cand the transmitter coil .'}2. The device according to claim 1 , further comprising a power factor correction module having an adjustable power factor correction claim 1 , wherein the control module is arranged to control the power factor correction module such that the power ...

Device and method for detecting a foreign object in a wireless power transfer system

A device for detecting a foreign object (112) in a WPT system is disclosed. The device includes an injection unit (122) to receive a DC power signal and generate a first AC power signal having a first frequency. Also, the device includes an array of coils (120) to receive the first AC power signal having the first frequency and generate a first electromagnetic field at the first frequency. Further, the device includes a detection unit (124) to measure a parameter of at least one of the DC power signal received by the injection unit (122) and the first AC power signal generated by the injection unit (122), and detect the foreign object (112) within the first electromagnetic field based on a change in the parameter of at least one of the DC power signal and the first AC power signal across at least one of the array of coils (120).

UNMANNED AERIAL VEHICLE, UNMANNED AERIAL VEHICLE SYSTEM, AND BATTERY SYSTEM

An unmanned aerial vehicle includes a main body, a propulsion assembly including a rotary blade and a motor to rotate the rotary blade about a rotation axis, the propulsion assembly being attached to the main body, a rechargeable battery to supply electric power to the propulsion assembly, a leg portion connected to the main body on a lower side of the main body in a vertical direction, and a power receiving coil to provide non-contact power feeding, the power receiving coil being electrically connected to the battery and being provided in the leg portion. 111-. (canceled)12. An unmanned aerial vehicle comprising:a main body;a propulsion assembly including a rotary blade and a motor to rotate the rotary blade about a rotation axis, the propulsion assembly being attached to the main body;a rechargeable battery to supply electric power to the propulsion assembly;a leg portion connected to the main body on a lower side of the main body in a vertical direction; anda power receiving coil to provide non-contact power feeding, the power receiving coil being electrically connected to the battery and being provided in the leg portion.13. The unmanned aerial vehicle according to claim 12 , whereinthe leg portion has a frame shape; andthe power receiving coil is provided in a frame shape along the leg portion.14. The unmanned aerial vehicle according to claim 13 , wherein the power receiving coil provides non-contact power feeding through a magnetic field resonance system.15. The unmanned aerial vehicle according to claim 14 , whereina pair of the leg portions is provided via a gap in one direction orthogonal or substantially orthogonal to the vertical direction;the pair of the leg portions protrudes downward in the vertical direction from the main body and has a frame shape that surrounds a first central axis parallel or substantially parallel to the one direction; anda distance between the pair of leg portions in the one direction increases as the pair of leg portions ...

Methods and apparatus utilizing multi-filar alignment assistance in wireless power transfer applications

An implementation provides an apparatus for determining an alignment of a wireless power coupler of a vehicle with a wireless power transmitter. The apparatus comprises a sensing circuit configured to measure a current in a plurality of separate conductors of the wireless power coupler. The apparatus comprises a controller configured to determine information related to an alignment of the wireless power coupler with the wireless power transmitter based at least in part on the measured current in the plurality of separate conductors. The controller is configured to determine the information related to the alignment of the wireless power coupler with the wireless charging power transmitter based on a difference between the measured current in the plurality of separate conductors. The information comprises a direction and distance of offset between the wireless power coupler and the wireless power transmitter. The measured current is a short circuit current.

Power transmission system

The power transmission system includes a power transmitting device that transmits AC power and a power receiving device that receives the AC power. The power receiving device includes a rectifier that converts the received AC power into DC power, a DC converter that performs DC conversion on the DC power output from the rectifier, and a power-receiving side controller that calculates, based on an input voltage of the DC converter, a current command value making input impedance of the DC converter equal to a preset value and controls the DC converter so that an input current of the DC converter equals the current command value.

SYSTEMS AND METHODS FOR LOW POWER EXCITATION IN HIGH POWER WIRELESS POWER SYSTEMS

Disclosed herein are systems and methods for low power excitation of wireless power transmitters configured to transmit high power. The exemplary systems and methods include disabling a power factor correction circuit of the transmitter, and adjusting one or more variable impedance components of the impedance network to obtain a minimum attainable impedance. 120-. (canceled)21. A system for low power excitation of a wireless power transmitter configured to transmit high power , the system comprising:an inverter including at least two transistors, the transistors configured to be controlled such that a phase shift angle associated with at least one transistor is adjustable during low power excitation;at least one variable impedance component coupled to an output of the inverter and configured to be adjusted to obtain a minimum attainable impedance during low power excitation, wherein the variable impedance components are configured to operate between the minimum attainable impedance and a maximum attainable impedance; anda resonator coil of the transmitter configured to generate a magnetic flux density less than or equal to a field safety threshold during low power excitation.22. The system of claim 21 , further comprising a power factor correction (PFC) circuit configured to drive the transmitter at a minimum bus voltage during low power excitation claim 21 , wherein the PFC circuit is configured to output a bus voltage between the minimum bus voltage and a maximum bus voltage.23. The system of claim 21 , further comprising a power factor correction (PFC) circuit and a low voltage source coupled to an output of the PFC circuit claim 21 , the low voltage source being configured to drive the transmitter during low power excitation.24. The system of claim 23 , wherein the PFC circuit is disabled during low power excitation.25. The system of claim 23 , wherein the low voltage source is one of a variable low voltage source or a fixed low voltage source.26. The system of ...

Wireless Power Receiving Device and Wireless Power Transmission Device

A wireless power receiving device, for wirelessly receiving electric power from a wireless power feeding device, includes: a power receiving side resonant circuit having a power receiving coil wirelessly receiving power from a power feeding side and a power receiving side resonant capacitor; a rectifier circuit in which the power received by the power receiving coil is rectified to be output to a load; a power receiving side voltage detecting portion for detecting the output voltage of the rectifier circuit; a short circuit having a switching element connected between an output portion of the power receiving side resonant circuit and an output portion of the rectifier circuit, and a rectifying element inserted between the output portion of the power receiving side resonant circuit and the switching element; and a controlling circuit which operates the switching element when a value of the output voltage exceeds a preset reference voltage value.

SYSTEM AND METHOD FOR MULTI-SOURCE WIRELESS AND CONDUCTIVE CHARGING

A charger system and method is disclosed for providing wireless and wired charging. The charger may include a wire-charging circuit operable to receive and process a first electrical energy from a wired power source directly connected to the vehicle. The charger may also include a receiving coil operable to receive a second electrical energy received from a wireless power source external that is not directly connected to the vehicle. The charger may include a resonant circuit having a receiving coil and a DC-DC converter. The receiving coil may provide impedance matching when the charger is receiving the first electrical energy from the wired power source. The receiving coil may also be energized by a wireless power source to receive a second electrical energy. The charger may further include a rectifier circuit operable to charge the battery using the first electrical energy or the second electrical energy. 1. A charger operable to provide wireless charging and wired charging to a battery of a vehicle , comprising:a wire-charging circuit including a power factor correction circuit, a capacitor, and an inverter, wherein the wire-charging circuit is operable to receive and process a first electrical energy from a wired power source directly connected to the vehicle;a resonant circuit, including a receiving coil and a DC-DC converter, wherein the receiving coil is energized to provide impedance matching when the wire-charging circuit is receiving and processing the first electrical energy from the wired power source, and wherein the receiving coil is energized by a wireless power source external to the vehicle to receive a second electrical energy when the resonant circuit is not receiving the first electrical energy from the wired power source; anda rectifier circuit operable to charge the battery using the first electrical energy and the second electrical energy.2. The charger of claim 1 , wherein the receiving coil receives the second electrical energy from a ...

Power receiving device and wireless power transmission system

A power receiving device includes a power receiving antenna that receives AC power from a power transmitting antenna, a rectifier circuit that converts the AC power into DC power, a detection circuit that detects the DC power, a load driven by the DC power, a battery that charges the DC power, a switching circuit that provides i) connection and disconnection between the rectifier circuit and the load and ii) connection and disconnection between the load and the battery, and a control circuit that controls the power receiving device. The control circuit controls the switching circuit to disconnect the rectifier circuit from the load and connect the load to the battery if the DC power is less than or equal to a power threshold value, and drive the load by the DC power charged in the battery.

Power feeding system during travelling

In a dynamic wireless power transfer system, a power transmission coil is provided in a road. A power transmission circuit supplies electric power to the power transmission coil. A power reception coil is provided in a vehicle. A power reception circuit is connected to the power reception coil. A relay circuit is provided in a tire of the vehicle. The relay circuit includes at least two relay coils that are connected in series. The relay circuit transfers electric power from the power transmission coil to the power reception coil by one relay coil of the two relay coils opposing the power transmission coil and the other relay coil opposing the power reception coil. A resonance frequency of the relay circuit is a frequency that is within a fixed range that is centered on an applied frequency of an alternating-current voltage that is applied to the power transmission coil.

DYNAMIC WIRELESS POWER TRANSFER SYSTEM

A dynamic wireless power transfer system includes a power transmission coil, a power transmission circuit, a power reception coil, a power reception circuit, and a relay circuit. The power transmission coil is provided in a road. The power transmission circuit supplies electric power to the power transmission coil. The power reception coil is provided in a vehicle. The power reception circuit is connected to the power reception coil. The relay circuit transfers electric power between the power transmission coil and the power reception coil in a contactless manner. 1. A dynamic wireless power transfer system comprising:a power transmission coil that is provided in a road;a power transmission circuit that supplies electric power to the power transmission coil;a power reception coil that is provided in a vehicle;a power reception circuit that is connected to the power reception coil; anda relay circuit that transfers electric power between the power transmission coil and the power reception coil.2. The dynamic wireless power transfer system according to claim 1 , wherein:the relay circuit includes a relay coil that is provided in a tire of the vehicle.3. The dynamic wireless power transfer system according to claim 2 , wherein:the tire includes a steel belt; andthe relay coil is provided as a portion of the steel belt.4. The dynamic wireless power transfer system according to claim 2 , wherein:the tire includes a steel belt that is formed by a non-magnetic body; andthe relay coil is arranged further toward an inner side than the steel belt is.5. The dynamic wireless power transfer system according to claim 2 , wherein:the tire includes a steel belt;the relay coil is provided in a tread portion of the tire that is further toward an outer circumferential side than the steel belt is; andthe steel belt is covered by a conductive shield.6. The dynamic wireless power transfer system according to claim 5 , wherein:the relay coil has a same shape pattern as the tread portion.7 ...

METHOD FOR DETERMINING POSITION INFORMATION OF A MOTOR VEHICLE, AND MOTOR VEHICLE

The disclosure relates to a method for determining position information of a motor vehicle, which has an inductive charging device with at least one charging coil, which is in particular situated in the region of the bottom of the vehicle, and a measurement means which is assigned to the charging coil to measure a magnetic field, the method having the following steps: magnetizing, by supplying current to the charging coil, at least one magnetic structure which is situated in or on a surface on which the motor vehicle drives, wherein the structure and further structures are stored together with a position indication for the respective structure in a digital map; measuring, using the measurement means, measurement data which describe the magnetic behavior of the structure; identifying the structure by evaluating the measurement data; and determining the position information depending on position indication assigned to the identified structure. 112.-. (canceled)13. A method for determining position information of a motor vehicle , the method comprising:magnetizing, by a first magnetic structure, a charging coil of a charging device of the motor vehicle by supplying current to the charging coil;measuring, by measurement means of the motor vehicle, measurement data that describe a first magnetic behavior of the first magnetic structure;identifying, by a control device of the motor vehicle, the first magnetic structure by evaluating the measurement data; anddetermining, by the control device of the motor vehicle, the position information based on a first position indication in a digital map assigned to the first magnetic structure,wherein the charging coil of the charging device is situated in a bottom region of the motor vehicle,the measurement means are assigned to the charging coil to measure a magnetic field,the first magnetic structure is situated in or on a road surface on which the motor vehicle drives,the first magnetic structure is situated with a second magnetic ...

Calibration device and method for determining an optimal operating frequency of a power transfer system

A calibration device includes a controller configured to communicate a plurality of input voltage signals having different determined frequencies to a first power exchange coil. Also, the calibration device includes a load unit coupled to a second power exchange coil, where the load unit includes at least a first electrical load and a second electrical load. Further, the calibration device includes a voltage sensor configured to measure a plurality of first output voltage signals across the first electrical load and a plurality of second output voltage signals across the second electrical load, and where the controller is configured to determine an optimal operating frequency of a wireless power transfer system based on the plurality of input voltage signals, the plurality of first output voltage signals, and the plurality of second output voltage signals.

ON-BOARD BIDIRECTIONAL AC FAST CHARGER FOR ELECTRIC VEHICLES

An electric vehicle fast charger and methods thereof are described, adapted for re-use of magnetic components of an electric vehicle having traction converters when the electric vehicle is stationary and connected to a power grid. A switching stage provided by one or more sets of switches is controlled complementarily with the switches of the traction converters to (i) provide inversion of a grid voltage and (ii) shape current of the grid current between the electric vehicle and the power grid to track a waveshape of the grid voltage. A single switching stage and a dual switching stage circuit are contemplated, along with switch controller circuits, and instruction sets for switch control. Variants provide for energy transfer to accommodate for energy imbalances between storage devices. 1. An electric vehicle fast charger adapted for re-using magnetic components of one or more motors of an electric vehicle having one or more traction converters having one or more traction converter switches that are not in use when the electric vehicle is stationary , the electric vehicle fast charger comprising:a pair of differential terminals configured for coupling to a power grid providing a grid voltage having a waveshape and frequency, the pair of differential terminals carrying a grid current between the power grid and the electric vehicle fast charger;one or more sensors coupled to the power grid to track the waveshape and the frequency of the grid voltage being provided by the power grid;one or more sets of switches coupled to the power grid through the differential terminals and coupled to a corresponding energy storage device of one or more energy storage devices, each set of switches including at least one of: current uni-directional switches or current bi-directional two quadrant switches;the one or more energy storage devices, each coupled to a corresponding set of switches of the one or more sets of switches and coupled to a corresponding traction converter of the one ...

Device and method for charging a battery system

A device for charging a battery system of a vehicle is provided. The battery system is configured to be charged by a charging unit, the charging unit is arranged in the vehicle, and the charging unit has an input and an output. The output is configured to be connected in an electrically conductive manner to the battery system in order to charge the battery system, a connection point for a releasable electrically conductive connection for transmitting an AC voltage for charging the battery system is arranged in the vehicle, and a receiver coil is arranged in the vehicle. In the receiver coil a voltage for charging the battery system is configured to be induced, and the input of the charging unit is configured to be connected in an electrically conductive manner to the connection point and/or to the receiver coil in order to charge the battery system.

Circuit for Object Detection and Vehicle Position Determination

A multi-purpose detection circuit for object detection and vehicle position determination is described. For example, the circuit is configurable for detecting foreign metallic objects, living objects, and a vehicle or type of vehicle above an inductive wireless power transmitter. The circuit is also configurable for determining the vehicle's position relative to the inductive wireless power transmitter. An example apparatus includes a measurement circuit including a multiplexer, electrically connected to a plurality of inductive and capacitive sense circuits, for measuring one or more electrical characteristics in each of the inductive and capacitive sense circuits according to a predetermined time multiplexing scheme. The apparatus further includes a control and evaluation circuit for evaluating the measured electrical characteristics and determining at least one of a presence of a metallic object, a living object, a vehicle, or a type of vehicle, and a vehicle position based on changes in the measured electrical characteristics. 1. An apparatus configured for foreign object detection , living object detection , vehicle detection , vehicle type detection , and vehicle position detection , the apparatus comprising: a plurality of inductive sense circuits forming an array; and', 'a plurality of capacitive sense circuits surrounding the array., 'a multi-purpose detection circuit having2. The apparatus of claim 1 , wherein each of the plurality of inductive sense circuits includes at least one inductive sense element and an associated capacitive element to compensate for gross reactance as presented at a plurality of terminals of the at least one inductive sense element at a sense frequency.3. The apparatus of claim 2 , wherein the at least one inductive sense element comprises a sense coil.4. The apparatus of claim 1 , wherein each of the plurality of capacitive sense circuits includes at least one capacitive sense element and an associated inductive element to ...

PHASE ALIGNMENT CIRCUIT AND METHOD OF RECEIVE END, AND RECEIVE END

This application discloses a phase alignment circuit and a method of a receive end, and a receive end. The receive end is located on an electric vehicle. The phase alignment circuit includes a phase measurement circuit and a controller. The controller is configured to: use, as an actual phase shift angle, a result obtained by subtracting a phase difference from a preset phase shift angle, and control a phase of a bridge arm voltage of a rectifier to lag behind the phase of the input current fundamental component by the actual phase shift angle. The controller outputs a drive signal for a controllable switching transistor of the rectifier by using the actual phase shift angle. Because a lagging phase caused due to filtering is compensated for, precision of synchronization between the bridge arm voltage and the input current can be increased. 1. A phase alignment circuit of a receive end , comprising:a phase measurement circuit having a first input end and a second input end, the first input end being connected to an output end of a current detection circuit, the second input end being connected to an output end of a filter, wherein the current detection circuit is to detect an input current of a rectifier and the filter is to filter the input current to obtain an input current fundamental component, and wherein the phase measurement circuit is further to obtain a phase difference between a phase of the input current and a phase of the input current fundamental component; and determine an actual phase shift angle by subtracting the phase difference from a preset phase shift angle, and', 'control a phase of a bridge arm voltage of the rectifier to lag behind the phase of the input current fundamental component by the actual phase shift angle., 'a controller configured to2. The phase alignment circuit according to claim 1 , wherein the phase measurement circuit is a digital phase detector claim 1 , and wherein the phase alignment circuit further comprises:a first zero- ...

Active rectifier for wireless power transfer system, vehicle assembly using same and operation method thereof

An active rectifier for a wireless power transfer system includes: a first rectifying circuit; a second rectifying circuit; a first switching circuit and a second switching circuit. The first rectifying circuit, the second rectifying circuit, the first switching circuit, and the second switching circuit are arranged in a form of a bridge circuit between a secondary coil of a vehicle and a battery of the vehicle, and the active rectifier controls the first and second switching circuits according to a charging status of the battery or an output status of the wireless power transfer system in order to change or maintain a charging power to the battery.

Resonance-type non-contact power supply system

A resonance-type non-contact power supply system is configured such that a power supply section is changeable in output frequency, and has an impedance measuring section that measures the input impedance of a resonant system. The power supply system includes a control section that performs control for transmitting proper power to power receiving equipment after changing the output frequency (f o ) of the power supply section to lie within one of the frequency ranges f 1 ≦f o ≦f 2 , . . . , f 2n-1 ≦f o ≦f 2n . The frequencies f 1 , f 2 , . . . , f 2n-1 , f 2n (f 1 <f 2 < . . . <f 2n-1 <f 2n ) are defined such that, if the input impedances of the resonant system at the time of supply of power of the frequencies f 1 , f 2 , . . . , f 2n-1 , f 2n to the resonant system are represented by Z 1 , Z 2 , . . . , Z 2n-1 , Z 2n , the input impedances satisfy Z 1 =Z 2 , . . . , Z 2n-1 =Z 2n .

Wireless charging unit for an electric vehicle

A wireless charging unit for an electric vehicle is provided with a metal enclosure to shield a high-power switching noise environment enclosed within the unit. A wireless power transfer system includes the wireless charging unit on the electric vehicle side that receives power wirelessly from a charging base. In addition to a high-power switching network, the wireless charging unit may include a wireless communication system for wirelessly communicating control messages to the charging base. The metal enclosure may include a cutout region having a plastic cover underneath which an antenna may be mounted to establish wireless communication with the charging base from within the metal enclosure.

Contactless charger system for charging an electric vehicle

A contactless charger system for charging a power storage unit of an electrically driven vehicle, such as an e-bike. The contactless charger system has a power transmission part with a primary coil around a primary magnetic circuit part including two primary pole faces, and a power receiving part with a secondary coil around a secondary magnetic circuit part having two secondary pole faces (). In operation, the two primary pole faces and the two secondary pole faces are aligned such that the primary and secondary magnetic circuit parts form a closed magnetic circuit. The secondary magnetic circuit part is an integral part of an electrically driven vehicle stand. 1. A contactless charger system for charging a power storage unit of an electrically driven vehicle , comprisinga power transmission part having a primary coil around a primary magnetic circuit part, the primary magnetic circuit part having two primary pole faces,a power receiving part having a secondary coil around a secondary magnetic circuit part, the secondary magnetic circuit part having two secondary pole faces,wherein, in operation, the two primary pole faces and the two secondary pole faces are aligned such that the primary and secondary magnetic circuit parts form a closed magnetic circuit, wherein the secondary magnetic circuit part is an integral part of an electrically driven vehicle stand.2. The contactless charger system according to claim 1 , wherein the power transmission part comprises a contact surface claim 1 , and the two primary pole faces are flat surfaces aligned with the contact surface.3. The contactless charger system according to or claim 1 , wherein a surface area of the secondary pole faces is equal to or smaller than a surface area of the primary pole faces.4. The contactless charger system according to claim 1 , wherein the electrically driven vehicle stand is a bicycle stand.5. The contactless charger system according to claim 1 , wherein the electrically driven vehicle is an ...

Contactless power transmission device, contactless power reception device, and contactless power transmission system

This contactless power transmission device transmits power to a contactless power reception device having a reception-side coil and a reception-side resonator which resonates with the reception-side coil. The contactless power transmission device has a transmission unit including a transmission-side coil, a transmission-side resonator which resonates with the transmission-side coil, and an inverter for feeding power to the transmission-side resonator. The inductance value of the transmission-side coil and/or the capacitance value of the transmission-side resonator is set so that the frequency range in which the phase difference of a primary-side current flowing through the transmission unit relative to a primary-side voltage applied to the transmission unit is zero or above is wider than when the inductance value of the reception-side coil are equal to each other as are the capacitance value of the reception-side resonator and the capacitance value of the transmission-side resonator.

REACTIVE POWER REGULATION OF WIRELESS POWER TRANSFER NETWORK

A wireless power transmission method of control where an electrical parameter of a resonant circuit, which is part of a transmitter antenna tuning and coupling unit, determines in some part the regulation current level target or power level target of the resonant circuit. By using an electrical parameter of a resonant circuit to establish a current or power regulation level of the resonant circuit, a maximum limitation is established for the electrical current and voltage of the antenna tuning and coupling unit in order to operate the electrical elements within safe design limits. Additionally, energy is managed entering the transmitter antenna tuning and coupling unit for variable load at the receiver. 1. A wireless power transfer system , comprising:a resonant circuit comprising a resonant component and an inductor;a receiver comprising an inductor which forms inductive coupling with the inductor of the resonant circuit and a rectifier connected to the inductor of the receiver, the receiver rectifying an AC signal to generate a DC output voltage;an inverter having a first input coupled to a power source and a second input for receiving one or more control signals, the inverter comprising switching circuitry coupled to the first and second inputs for selectively connecting the power source to the resonant circuit; anda controller receiving a first signal corresponding to an electrical parameter of the resonant component and a second signal corresponding to the electrical parameter of an input to the resonant circuit, generating the one or more control signals based upon the first signal and the second signal, the one or more control signals controlling the switching circuitry, and setting a current regulation target for the resonant circuit that is based upon a ratio of the first signal to the second signal.2. The wireless power transfer system of claim 1 , wherein the electrical parameter of the resonant component comprises a voltage across the resonant component ...

Power reception device, power transmission device, and vehicle

A power reception device includes a coil and a core having the coil wound therearound, the core including a stem portion extending in a direction in which the winding axis extends, and having the coil wound therearound, and a magnetic pole portion formed at least at one end portion of the stem portion, and extending in an intersecting direction that intersects the direction in which the winding axis extends, a width of the stem portion in the intersecting direction being smaller than a length of the magnetic pole portion in the intersecting direction, a first central portion positioned at a center of the magnetic pole portion in the intersecting direction and a second central portion positioned at a center of the stem portion in the intersecting direction being displaced from each other in the intersecting direction.

A POWER TRANSFER SYSTEM FOR ELECTRIC VEHICLES AND A CONTROL METHOD THEREOF

Power transfer system for supplying electric power to a battery of an electric vehicle including a control architecture capable of controlling the transmission of electric power to a battery of said electric vehicle and, at the same time, capable of providing fast responsive control functionalities. In a further aspect, the application relates to a method for controlling a power transfer system. 1. A power transfer system for exchanging electric power between an electric power system and a battery of an electric vehicle comprising:a transmitter-side power sub-system comprising a first rectifying stage electrically coupleable with said electric power system, a DC-bus stage electrically coupled with said first rectifying stage and adapted to provide a first DC power and an inverter stage electrically coupled with said DC-bus stage and adapted to receive said first DC power and provide a first AC power;a transmitter-side coil sub-system electrically coupled with said inverter stage and adapted to receive said first AC power, said transmitter-side coil sub-system comprising a transmitter coil adapted to receive a first AC current;one or more transmitter-side controllers adapted to control operation of said transmitter-side power sub-system and transmitter-side coil sub-system;a receiver-side coil sub-system comprising a receiver coil inductively coupleable with said transmitter coil, said receiver-side coil sub-system being adapted to exchange an AC power with said transmitter-side coil sub-system;a receiver-side power sub-system comprising a second rectifying stage electrically coupled with said receiver-side coil sub-system and adapted to exchange a second AC power with said receiver-side coil sub-system, said second rectifying stage being electrically coupleable with said battery and adapted to provide a second DC power to said battery;one or more receiver-side controllers adapted to control operation of said receiver-side coil sub-system and receiver-side power sub- ...

WIRELESS POWER TRANSMISSION SYSTEM, POWER TRANSMITTING DEVICE, AND POWER RECEIVING DEVICE

A wireless power transmission system includes a power transmitting device and a power receiving device. The power transmitting device includes: a first inverter circuit to output charging power to be directed to power transmission; a power transmitting antenna; and a first control circuit to control the first inverter circuit. The power receiving device includes: a power receiving antenna; and a trigger application circuit to apply, to detecting power to be supplied to the power receiving antenna, a trigger signal for informing of the power transmitting device of the presence of the power receiving device. Upon detecting the trigger signal, the first control circuit causes the first inverter circuit to begin outputting the charging power. 1. A wireless power transmission system , comprising:a power transmitting device; anda power receiving device,the power transmitting device including:a first conversion circuit to convert power supplied from a first power source into charging power to be directed to charging in the power receiving device;a power transmitting antenna to send out the charging power which is output from the first conversion circuit;a first control circuit to control the first conversion circuit; anda first detection circuit to detect a fluctuation in current and/or voltage at a point on a transmission line from the first power source to the power transmitting antenna,the power receiving device including:a power receiving antenna to receive the charging power which is sent out from the power transmitting antenna;a power receiving circuit to convert the charging power received by the power receiving antenna into an AC power of a frequency different from that of the charging power or DC power, and to supply the AC power or the DC power to a load; anda trigger application circuit to apply a trigger signal for informing the power transmitting device of presence of the power receiving device onto detecting power which is supplied from the power transmitting ...

METHOD AND APPARATUS FOR VEHICLE LOCATION-BASED POWER CONTROL OF WIRELESS CHARGING INVERTER

A power control of a wireless charging inverter is provided. Communication is performed between a driving vehicle and an inverter used for wireless charging of a vehicle. Using the location information of the driving vehicle, the time for the driving vehicle to enter the power supply line and the expected time to leave the power supply line are predicted. The power of the inverter is controlled by using the predicted enter and exit time information of the driving vehicle. 1. A method for vehicle location-based power control of a wireless charging inverter , comprising the steps of:(a) receiving GPS coordinates from a currently driving vehicle registered in wireless charging service; and(b) determining a power control plan to provide to a segment based on the GPS coordinates of the currently driving vehicle received in step (a).2. The method of claim 1 , wherein the step (b) includes the steps of:(b1) generating a movement distance by mapping the GPS coordinates of the currently driving vehicle received in step (a) onto a pre-extracted GPS log; and(b2) calculating a speed of the currently driving vehicle using the movement distance generated in step (b1) and estimating entry and exit times of the currently driving vehicle in a vector direction of the calculated speed.3. The method of claim 1 , wherein the GPS coordinates are received at a constant interval or variable intervals.4. The method of claim 2 , wherein the pre-extracted GPS log is a GPS coordinates recorded in advance while a vehicle drives in a lane where the inverter is present at a time of installation.5. The method of claim 2 , wherein the mapping in the step (b1) includes the steps of:(b11) drawing one or more vertical lines on paths between ith point and (i+1)th point of the pre-extracted GPS log; and(b12) determining a nearest point among the vertical lines drawn in step (b11) as a location of the currently driving vehicle.6. The method of claim 5 , wherein claim 5 , if the vertical line drawn in ...

Shield apparatus and wireless power supply system

A shield apparatus is used during wireless power supply from a power-transmitting coil to a power-receiving coil of a vehicle, and includes a multilayer magnetic shield member installed around the power-transmitting coil and arranged so as to surround a space between the power-transmitting coil and the power-receiving coil during supply of electric power.

MOTOR VEHICLE CHARGING

An arrangement for charging a battery in a first motor vehicle includes a wireless charger receiver electrically coupled to the battery. The wireless charger receiver wirelessly receives electrical energy from a second motor vehicle and stores the received electrical energy in the battery. A battery management system is electrically connected to the wireless charger receiver and to the battery. The battery management system controls transfer of the electrical energy from the wireless charger receiver to the battery. 1. An arrangement for charging a battery in a first motor vehicle , the arrangement comprising: be electrically coupled to the battery;', 'wirelessly receive electrical energy from a second motor vehicle; and', 'store the received electrical energy in the battery; and, 'a wireless charger receiver configured toa battery management system electrically connected to the wireless charger receiver and to the battery, the battery management system being configured to control transfer of the electrical energy from the wireless charger receiver to the battery.2. The arrangement of claim 1 , wherein the wireless charger receiver includes a power receiver coil.3. The arrangement of claim 2 , wherein the battery management system includes an impedance matching network.4. The arrangement of claim 1 , wherein the wireless charger receiver is configured to inductively receive the electrical energy from the second motor vehicle.5. The arrangement of claim 1 , wherein the battery is included in a high voltage battery pack.6. The arrangement of claim 1 , further comprising a vehicle infotainment system coupled to the battery management system.7. The arrangement of claim 6 , wherein the vehicle infotainment system is configured to create a request to the second motor vehicle for charging.8. A method for charging a battery in a first motor vehicle claim 6 , the method comprising:electrically coupling a wireless charger receiver to the battery;wirelessly receiving ...

CHARGING SYSTEM, CHARGING STATION, MOVABLE BODY, AND CHARGING METHOD

A charging system includes: a movable body including a frame and a battery provided in the frame; and a charging station configured to charge the battery. The movable body includes: a pressure detection unit configured to detect pressure in the frame; and a charging permission signal output unit configured to output a charging permission signal indicating that the pressure in the frame is detected to be equal to or higher than a threshold pressure. The charging station includes: a charging permission signal acquisition unit configured to acquire the charging permission signal from the charging permission signal output unit; and a power transmission unit configured to execute non-contact charging of the battery when the charging permission signal is acquired by the charging permission signal acquisition unit. 1. A charging system comprising:a movable body including a frame and a battery provided in the frame; anda charging station configured to charge the battery, wherein a pressure detection unit configured to detect pressure in the frame, and', 'a charging permission signal output unit configured to output a charging permission signal indicating that the pressure in the frame is detected to be equal to or higher than a threshold pressure, and, 'the movable body includes'} a charging permission signal acquisition unit configured to acquire the charging permission signal from the charging permission signal output unit, and', 'a power transmission unit configured to execute non-contact charging of the battery when the charging permission signal is acquired by the charging permission signal acquisition unit., 'the charging station includes'}2. The charging system according to claim 1 , whereinthe charging permission signal output unit stops outputting the charging permission signal when the pressure in the frame is detected to be lower than the threshold pressure, andthe power transmission unit stops the non-contact charging of the battery when the charging permission ...

System and/or method for charging or powering devices, including mobile devices, machines or equipment

In accordance with various embodiments, described herein are systems and/or methods for enabling efficient wireless power transfer and charging of devices and/or batteries, including in some embodiments freedom of placement of the devices and/or batteries in one or multiple (e.g. one, two or three) dimensions, and/or improved features such as ease of use and compatibility. Exemplary applications include beam inductive or magnetic charging and power for use in, e.g., mobile, electronic, electric, lighting or other devices, machines, batteries, power tools, kitchen, military, medical, industrial tools or systems, robots, trains, buses, trucks and/or vehicles, and other environments.

Modular magnetic flux control

Modular coil assemblies for wireless charging of vehicles have coil geometries and communications designed to limit electromagnetic field (EMF) levels in regions where humans or other living objects may be present. The modular coil assemblies are designed with the ability to shape the magnetic field to be predominately within shielding provided by the auto chassis by, for example, providing side-by-side phase cancellation or diagonal versus front-to-back (for 1×3, 2×3 array configurations) phase cancellation. The power levels and frequency offset pairwise compensation of the respective coils may be controlled to improve cancellation and thus to reduce magnetic field exposure potential. The phase cancellation of the magnetic flux density from respective coil assemblies varies over a range to provide, for example, ˜50% cancellation at 125° offset and up to ˜100% cancellation at 180°. Charging profiles for vehicles and charging stations may be used to maximize the magnetic flux density cancellation during charging.

Self-contained renewable inductive battery charger

A transportable unit for charging an electric vehicle has a vehicle docking pad and a source of renewable energy mounted on the docking pad that includes a solar array and/or a wind turbine. Also included is a storage battery for receiving electricity from the source of renewable energy. Structurally, a primary induction coil is affixed to the docking pad where it is connected to receive a converted a.c. current from the storage battery. With this connection, the primary induction coil generates an alternating electromagnetic field that establishes a resonant inductive coupling with a secondary induction coil mounted on the electric vehicle. Thus, an electric current is generated at the secondary induction coil for recharging the battery of the electric vehicle.

WIRELESS POWER SYSTEM

A method for wirelessly or conductively (non-wireless) providing AC or DC power in AC or DC load applications and bidirectional applications. 1. A method for wireles sly providing AC power to a vehicle or an energy storage system , the vehicle being an electric vehicle or a plug-in electric vehicle or a hybrid electric vehicle , the energy storage system including a stationary or mobile system , the vehicle or the energy storage system including a battery and an on-board AC charger configured to receive the AC power , convert the AC power to DC power , and charge the battery with the DC power , the method comprising: receiving a grid-voltage signal that is single-phase or three-phase;', 'producing a modulated high-frequency voltage signal that includes a high-frequency carrier signal having an envelope corresponding to the grid-voltage signal; and', 'wireles sly transmitting the modulated high-frequency voltage signal to the vehicle or the energy storage system;, 'at an off-board module,'}at an on-board module spaced apart from, and electromagnetically coupled with, the off-board module,wirelessly receiving the modulated high-frequency voltage signal; andproviding the modulated high-frequency voltage signal to an AC plug of the on-board AC charger as the AC power.2. The method of claim 1 , wherein:the high-frequency carrier signal has a carrier frequency in a range that any switching power electronics device can operate within; and,producing the modulated high-frequency voltage signal includes switching on-and-off the grid-voltage signal at the carrier frequency.3. The method of claim 1 , wherein claim 1 , prior to producing the modulated high-frequency voltage signal claim 1 , passing the grid-voltage signal through coupling capacitors.4. The method of claim 3 , wherein the coupling capacitors may have any value depending on the design.5. The method of claim 1 , wherein claim 1 , prior to producing the modulated high-frequency voltage signal claim 1 , pre-filtering ...

Coil topologies for inductive power transfer

This disclosure provides systems, methods and apparatus including a magnetic flux device configured to transmit or receive magnetic flux. In certain configurations, the magnetic flux device can include a first coil with a first layer and second layer, a second coil with a third layer and fourth layer, and a magnetically permeable material with the first coil extending over a first edge of the magnetically permeable material and the second coil extending over a second edge of the magnetically permeable material. In certain other configurations, the magnetic flux device can include a first conductive structure including a first coil and a second coil enclosing a first area and a second area, respectively. The magnetic flux device can further include a second conductive structure with at least a first planar portion of the first conductive structure being substantially coplanar with a second planar portion of the second conductive structure.

ELECTRIC ACCESSORY INTERFACE FOR WORK VEHICLE

An electrically powered work vehicle includes a work vehicle frame and a plurality of ground engaging units for supporting the work vehicle frame from a ground surface, at least one of the ground engaging units being powered by an electric drive motor to drive the vehicle. An electrical power storage system is carried by the work vehicle frame and connected to the electric drive motor to provide electrical power to the electric drive motor. A work tool coupler is carried by the work vehicle and configured to selectively interconnect the work vehicle with a coupler receiver of a selected one of a plurality of different work tools. A vehicle side electrical connector is carried by the work tool coupler and configured to transfer electrical power to the electrical power storage system to charge the electrical power storage system. Such a work vehicle may be used in combination with an external charging station. The external charging station may include an electrical power source, a coupler receiver configured to mechanically interconnect with the work tool coupler, and a charging station side electrical connector configured to electrically interconnect with the vehicle side electrical connector when the work tool coupler is mechanically interconnected with the coupler receiver. The charging side electrical connector is configured to connect the electrical power source to the vehicle side electrical connector. 1: An electrically powered work vehicle , comprising:a work vehicle frame;a plurality of ground engaging units for supporting the work vehicle frame from a ground surface, at least one of the ground engaging units being powered by an electric drive motor to drive the vehicle;an electrical power storage system carried by the work vehicle frame and connected to the electric drive motor to provide electrical power to the electric drive motor;a work tool coupler carried by the work vehicle and configured to selectively interconnect the work vehicle with a coupler ...

DEVICE FOR A WIRELESS POWER TRANSFER SYSTEM

A device for a wireless power transfer system includes a housing and a conductor wire forming a coil arranged in the housing. The coil has a first topology. The conductor wire is rearrangeable such that the coil is given a second topology instead of the first topology. The first topology and the second topology are different from each other. 1. A device for a wireless power transfer system , the device comprising a housing and a conductor wire forming a coil arranged in the housing , the coil having a first topology , wherein the conductor wire is rearrangeable such that the coil is given a second topology instead of the first topology , the first topology and the second topology being different from each other.2. A device according to claim 1 , wherein the first topology has a plurality of coil windings arranged in a first pattern and the second topology has the plurality of coil windings arranged in a second pattern different from the first pattern.3. A device according to claim 1 , wherein the first topology has a plurality of coil windings arranged at a first level and the second topology has the plurality of coil windings arranged at a second level different from the first level.4. A device according to claim 1 , wherein the device comprises an actuator for moving the conductor wire from the first topology to the second topology claim 1 , and from the second topology to the first topology.5. A device according to claim 4 , wherein the actuator is arranged for moving the conductor wire in the longitudinal direction of the conductor wire.6. A device according to claim 4 , wherein the actuator comprises a motor claim 4 , a spool driven by the motor and a non-conductive thread wound on the spool and mechanically connected to the conductor wire.7. A device according to claim 1 , the device comprises a first pipe portion for receiving and accommodating the conductor wire inside the first pipe portion claim 1 , the first pipe portion having a longitudinal extension ...

Method and apparatus for triggering an emergency shutdown of the inductive charging of a motor vehicle

A method and an apparatus for triggering an emergency shutdown of the inductive charging of a secondary-side component in the form of a motor vehicle by a primary-side component in the form of a charging station, includes a plurality of charging system parts of the secondary-side component. The charging system parts are each configured to interrupt at least one switchable communication channel that connects the charging system parts in order to trigger an emergency shutdown of the inductive charging.

HYBRID CHARGING SYSTEM

A hybrid charging system for electric vehicles includes an AC-to-DC converter connectable to an electric AC grid; a transformer interconnected with the AC-to-AC converter with a primary winding; a secondary side AC-to-DC converter interconnected with a secondary winding of the transformer and for providing a DC current for power transfer to an electric vehicle via a cable; a cable connected to the secondary side AC-to-DC converter for providing a DC current for power transfer to an electric vehicle; and a first inductive coil interconnected with the AC-to-AC converter and for inductively coupling to a second inductive coil for power transfer to an electric vehicle via an air gap. 1. A hybrid charging system for electric vehicles , the charging system comprising:an AC-to-AC converter connectable to an electric AC grid;a transformer interconnected with the AC-to-AC converter with a primary winding;a secondary side AC-to-DC converter interconnected with a secondary winding of the transformer;a cable connected to the secondary side AC-to-DC converter for providing a DC current for power transfer to an electric vehicle;a first inductive coil interconnected with the AC-to-AC converter and for inductively coupling to a second inductive coil for power transfer to an electric vehicle via an air gap.2. The hybrid charging system of claim 1 , further comprising:a first switch interconnected between the AC-to-AC converter and the transformer for disconnecting the primary winding of the transformer from the AC-to-AC converter or for short-circuiting the primary winding of the transformer;a second switch interconnected between the AC-to-AC converter and the first inductive coil for disconnecting the first inductive coil from the AC-to-AC converter or for short-circuiting the first inductive coil.3. The hybrid charging system of claim 2 ,wherein the first switch is a normally closed switch and the second switch is a normally open switch; orwherein the second switch is a normally ...

Method and apparatus for charging an energy store

An energy store ( 14 a ) has at least three energy storage sections (u, v, w) and at least two switching elements. Each energy storage sections (u, v, w) has multiple energy storage modules and each energy storage module has at least one energy storage element that receives and stores energy from an energy source ( 12 ). The energy store ( 14 a ) is connected to a first coil ( 50 ) so that a voltage induced in the first coil ( 50 ) is used to charge the energy storage elements. The energy store ( 14 a ) is matched to properties of the voltage provided by the first coil ( 50 ) by switching the switching elements. As a result, the energy storage modules of an energy storage section (u, v, w) are connected in parallel and/or in series with one another and/or at least one energy storage module of at least one energy storage section (u, v, w) is bypassed.

A method for pairing electric vehicles and power terminals in a power station for electric vehicles

A method for pairing a power terminal and an electric vehicle in a power station for electric vehicles, wherein the method includes powering the terminal-side coil stage of a power terminal with a test electric quantity to determine whether the power terminal and an electric vehicle are in a paired condition, at which the power terminal and the electric vehicle can exchange electric power, or in an unpaired condition, at which the power terminal and the electric vehicle cannot exchange electric power.

Vehicle and wireless power transmission device

The vehicle includes a motor capable of producing motive power for movement; a storage battery capable of supplying electric power to drive the motor; and a secondary coil capable of performing wireless transmission of electric power between the secondary coil and a primary coil at an outside of the vehicle. In addition, the vehicle includes a command generation part capable of generating a command to move the vehicle so as to adjust a relative position of the secondary coil with respect to the primary coil, using a first received power value indicating an amount of electric power received by the secondary coil from the primary coil or using a second received power value indicating an amount of electric power received by the primary coil from the secondary coil.

Primary Unit for an Inductive Charging System and Method for Operating a Primary Unit

A primary unit for an inductive charging system configured to transmit energy from the primary unit to a secondary unit via a magnetic field includes a primary coil, which is configured to generate the magnetic field in response to a coil current through the primary coil. The primary unit also has a first inverter, which is coupled to the primary coil via a first capacitor and which is configured to charge and/or discharge the first capacitor based on a first input voltage; and a second inverter, which is coupled to the primary coil via a second capacitor and which is configured to charge and/or discharge the second capacitor based on a second input voltage. The primary unit has a control unit, which is configured to identify capacitance information with respect to an effective capacitance of a primary resonant circuit of the primary unit, and to actuate the first inverter and the second inverter depending on the capacitance information in order to effect the coil current through the primary coil. 112.-. (canceled)13. A primary unit for an inductive charging system configured to transfer energy from the primary unit to a secondary unit via a magnetic field , comprising:a primary coil configured to generate the magnetic field in response to a coil current through the primary coil;a first inverter coupled to the primary coil via a first capacitor and configured to charge or discharge the first capacitor based on a first input voltage;a second inverter coupled to the primary coil via a second capacitor and configured to charge or discharge the second capacitor based on a second input voltage; anda control unit configured to:ascertain a capacitance information item with respect to an effective capacitance of a primary resonant circuit of the primary unit, wherein the primary resonant circuit comprises the primary coil; anddrive the first inverter and the second inverter based on the capacitance information item in order to bring about the coil current through the ...

Inductive wireless power transfer systems

A wireless power transfer system has a coil assembly including a ferrite pad and a pair of spaced apart inductive coils on the ferrite pad, and a switching network that, in response to an indication of a corresponding inductive coil assembly configuration, controls a direction of current flow through each of the coils to selectively operate the coils in a two-pole mode or a three-pole mode.

Mixed semiconductor h-bridge power converters and methods related thereto

This disclosure provides systems, methods and apparatus for power converters and particularly power converters for wireless power transfer to remote systems such as electric vehicles. In one aspect, the disclosure provides an electronic power supply. The electronic power supply includes at least first and second half-bridge circuitries. The first half-bridge circuitry includes semiconductor material of a first type. The second half-bridge circuitry of the H-bridge includes semiconductor material of a second type. The first semiconductor material type is different from the second semiconductor material type.

SYSTEMS AND METHODS FOR LOW POWER EXCITATION IN HIGH POWER WIRELESS POWER SYSTEMS

Disclosed herein are systems and methods for low power excitation of wireless power transmitters configured to transmit high power. The exemplary systems and methods include disabling a power factor correction circuit of the transmitter, and adjusting one or more variable impedance components of the impedance network to obtain a minimum attainable impedance. The variable impedance components can be configured to operate between the minimum attainable impedance and a maximum attainable impedance. The systems and methods can include adjusting a phase shift angle associated with one or more transistors of the inverter and driving the transmitter such that the transmitter resonator coil generates a magnetic flux density less than or equal to a field safety threshold. 1. A method for low power excitation of a wireless power transmitter configured to transmit high power , the transmitter comprising an inverter coupled to an input of an impedance network and a transmitter resonator coil coupled to an output of the impedance network , the method comprising:disabling a power factor correction circuit coupled proximate to an input of the inverter;adjusting one or more variable impedance components of the impedance network to obtain a minimum attainable impedance, wherein the variable impedance components are configured to operate between the minimum attainable impedance and a maximum attainable impedance;adjusting a phase shift angle associated with one or more transistors of the inverter; anddriving the transmitter such that the transmitter resonator coil generates a magnetic flux density less than or equal to a field safety threshold.2. The method of wherein the wireless power transmitter is configured to transmit high power between an operating frequency between 80 kHz and 90 kHz.3. The method of wherein the wireless power transmitter is configured to transmit power at a power level between 500 W and 20 claim 1 ,000 W.4. The method of wherein driving the transmitter is ...

Wireless power transmission system having power control

Methods and apparatus to control load power in a wireless power transfer system having one or more power receiving devices and one or more power transmitting sources. In embodiments, device temperature, current level, and/or other information can be used to control power to a load energized by a device.

Underwater Non-Contact Power Supply Device

A power transmission coupler void space () and a power transmission hose void space () are allowed to communicate with each other. A viscous resin (D) is sealed in each of the power transmission coupler void space () and the power transmission hose void space (). A power reception coupler void space () and a power reception hose void space () are allowed to communicate with each other. A viscous resin (D) is sealed in each of the power reception coupler void space () and the power reception hose void space (). 16871098108106. An underwater non-contact power supply device () supplying electric power from a power transmission coil () of a power transmission circuit () to a power reception coil () of a power reception circuit () in water while the power transmission coil () and the power reception coil () are close to and facing each other with a gap (G) formed between the power transmission coil () and the power reception coil () , the underwater non-contact power supply device () comprising:{'b': 13', '12', '8, 'a power transmission coupler () including a power transmission container () housing the power transmission coil ();'}{'b': 15', '12', '14', '8, 'a power transmission hose () coupled to the power transmission container () and housing a power transmission lead wire () of the power transmission coil ();'}{'b': 17', '16', '10, 'a power reception coupler () including a power reception container () housing the power reception coil (); and'}{'b': 19', '16', '18', '10, 'a power reception hose () coupled to the power reception container () and housing a power reception lead wire () of the power reception coil (), wherein'}{'b': 20', '13', '21', '15', '20', '21, 'a power transmission coupler void space () in the power transmission coupler () and a power transmission hose void space () in the power transmission hose () are allowed to communicate with each other, wherein a viscous resin (D) is sealed in each of the power transmission coupler void space () and the power ...

ELECTRIC CHARGING SYSTEM AND METHOD

An electric charging system for a vessel, vehicle, or aircraft includes one or more energy storage modules on the vessel, vehicle, or aircraft; a pulse rectifier; a converter; and a voltage control transformer. The one or more energy storage modules are connected to outputs of the pulse rectifier. The voltage control transformer is connected to inputs of the pulse rectifier. The voltage control transformer includes a serial transformer having a plurality of pairs of transformer windings, connected together in series, one winding of each pair being adapted to be connected between the pulse rectifier and an input from an energy source and the other winding is connected to the converter. 1. An electric charging system for a vessel , vehicle , or aircraft , the system comprising:one or more energy storage modules on the vessel, vehicle, or aircraft;a pulse rectifier;a converter; anda voltage control transformer;wherein the one or more energy storage modules are connected to outputs of the pulse rectifier;wherein the voltage control transformer is connected to inputs of the pulse rectifier;wherein the voltage control transformer comprises a serial transformer having a plurality of pairs of transformer windings, connected together in series, one winding of each pair being adapted to be connected between the pulse rectifier and an input from an energy source; andwherein the other winding is connected to the converter.2. The system according to claim 1 ,wherein the converter comprises a controlled AC to DC converter.3. The system according to claim 2 ,wherein the converter further comprises a chopper between the output of the AC to DC converter and a DC bus.4. The system according to claim 1 ,wherein the energy storage modules comprise one of a battery or capacitor bank.5. An electric charging system for a vessel claim 1 , vehicle claim 1 , or aircraft claim 1 , the system comprising:one or more energy storage modules on the vessel, vehicle, or aircraft;a transformer ...

Foreign Object Detection Circuit Using Mutual Impedance Sensing

The present disclosure describes techniques for detecting foreign objects. In some aspects, an apparatus for detecting objects is provided. The apparatus includes a plurality of sense circuits, each of the plurality of sense circuits including a primary sense coil having a first terminal and a second terminal, a secondary sense coil having a first terminal and a second terminal, and a capacitor having a first terminal and a second terminal. The first terminal of the capacitor is electrically connected to the second terminals of each of the primary sense coil and the secondary sense coil. The apparatus further includes a driver circuit electrically connected to the first terminal of the primary sense coil of each of the plurality of sense circuits. The apparatus further includes a measurement circuit electrically connected to the first terminal of the secondary sense coil of each of the plurality of sense circuits.

Inductive power system suitable for electric vehicles

A circuit for energizing a magnetic flux coupling apparatus has a pick-up coil for receiving power inductively, a storage capacitor for storing energy from the received power, and an inverter for supplying electrical energy from the storage capacitor to the magnetic flux coupling apparatus. The circuit allows power transfer to a load to be supplied by the flux coupling apparatus to exceed the power received from the pick-up.

Wireless power supply system and power transmission device

A wireless power supply system includes a power transmission device provided on a ground side and a power receiving device mounted on a vehicle, the power transmission device transmitting, to the power receiving device via a wireless connection, electric power controlled by an inverter circuit, wherein the power receiving device transmits a power supply command signal to the power transmission device in a first cycle by use of a radio signal. The power transmission device includes a power transmission coil current detection means for detecting a power transmission coil current flowing through a power transmission coil and controls an output voltage of the inverter circuit based on the power supply command signal and the power transmission coil current detected by the power transmission coil current detection means in a second cycle shorter than the first cycle.

Non-contact electric power transmission system and charging station

A charging station includes a plurality of electric power transmission portions and a power supply ECU controlling electric power transmission from the plurality of electric power transmission portions. The power supply ECU performs pairing processing for determining a first electric power transmission portion after a vehicle completes positioning with respect to the first electric power transmission portion, checks whether or not positional relation between the first electric power transmission portion and a electric power reception portion of the vehicle satisfies an electric power reception condition after the pairing processing is performed and immediately before electric power transmission from the first electric power transmission portion to the vehicle is started, and allows the first electric power transmission portion to start electric power transmission to the vehicle when the positional relation satisfies the electric power reception condition.

Power supply device and power supply method

A power supply device which performs power supply from an outside to a vehicle includes: a power source section for performing the power supply to the vehicle; and a control device that performs control of the power source section. The control device obtains information about power reception efficiency of the vehicle as an object of the power supply and determines a power reception efficiency range and a fee that correspond to the obtained information from a plurality of power reception efficiency ranges and plurality of fees that are set corresponding to the plurality of power reception efficiency ranges. The power supply device preferably further includes a power transmission section for receiving the power from the power source section and contactlessly performing power transmission to the vehicle.

Induction charging device

An induction charging device for an electrically operated motor vehicle may include an emission protection arrangement and a charging arrangement secured to the emission protection arrangement. The emission protection arrangement may include a metal shield plate. The charging arrangement may include a magnetic plate facing the emission protection arrangement, at least one induction coil disposed in a charging housing, and an active cooling arrangement secured in the charging housing to transfer heat. The magnetic plate may be at least one of (i) at least partially ferrimagnetic and (ii) at least partially ferromagnetic. On a housing bottom side, the charging housing may include at least one cooling recess for the active cooling arrangement. The active cooling arrangement may include at least one cooling duct formed integrally in the cooling recess. The charging arrangement may further include a bottom side cover secured in a fluid-tight manner to the housing bottom side.